When the Promise Was Placed on the Altar

Before reading this week’s reflection, take a little time to read Genesis 20–22. If you have time, begin with the closing verses of Genesis 19 and follow the story all the way to the mountain.

As you read, don’t rush past the familiar parts. Pay attention to what Abraham says, what Isaac says, and what God does.

And keep asking the question that has guided us from the beginning:

What does this story reveal about the Father?

When the Promise Was Placed on the Altar

After the smoke of Sodom, life continued.

Lot’s story ended painfully, with the beginnings of Moab and Ammon. Abraham moved on too, but some old fears moved with him. In Gerar, he once again told people that Sarah was his sister because he was afraid they might kill him because of her (Genesis 20:11).

It is an uncomfortable story to find this late in Abraham’s journey.

After everything he had seen, everything God had promised, and everything God had already done, Abraham was still capable of fear.

His faith had never grown in a straight line.

He had trusted God enough to leave home without knowing where he was going, then became afraid in Egypt. He believed God’s promise, then tried to make it happen through Hagar. He stood beneath the stars and believed, then years later still tried to protect himself with Abimelech.

Abraham trusted, struggled and failed. And again and again, God remained faithful.

Then the promise finally arrived.

“The LORD visited Sarah as He had said, and the LORD did for Sarah as He had spoken.”
— Genesis 21:1

Sarah gave birth to Isaac.

The child whose name meant laughter filled their home with exactly that.

For years Abraham had carried a promise. Now he could hold the promise in his arms.

But Isaac’s arrival did not mean that the Father had forgotten Ishmael.

When Hagar and Ishmael were sent away and their water was gone, Hagar moved away because she could not bear to watch her son die.

Then came words we have heard before:

“God heard the voice of the lad.”
— Genesis 21:17

The Father opened Hagar’s eyes to water, renewed His promise concerning Ishmael, and Genesis quietly tells us:

“God was with the lad.”
— Genesis 21:20

Isaac was the child of promise.

But Ishmael was not invisible.

Then Genesis turns a corner.

“Now it came to pass after these things that God tested Abraham.”
— Genesis 22:1

God called his name.

“Abraham!”

And Abraham answered:

“Here I am.”

Then came the command.

“Take now your son, your only son Isaac, whom you love... and offer him there as a burnt offering on one of the mountains of which I shall tell you.”
— Genesis 22:2

His son.

His only son.

Isaac.

The son he loved.

This was more than Abraham being asked to surrender someone precious.

Isaac was the promise.

God had told Abraham that his descendants would come through Isaac (Genesis 21:12).

And now God was asking Abraham to place Isaac on an altar.

There is no recorded argument.

When God told Abraham about Sodom, Abraham had asked:

“Shall not the Judge of all the earth do right?”
— Genesis 18:25

He questioned. He pleaded.

But here there is silence.

Early the next morning Abraham rose, saddled his donkey, cut the wood, took two servants and Isaac, and began walking.

For three days.

Genesis tells us almost nothing about those three days.

Maybe that silence is enough.

Three days of walking beside the son he loved, carrying a command he could not understand.

Then Abraham saw the place in the distance.

He turned to the servants and said:

“Stay here with the donkey; the lad and I will go yonder and worship, and we will come back to you.”
— Genesis 22:5

We will come back.

Not I.

We.

Hebrews later tells us that Abraham reasoned that if Isaac died, God was able even to raise him from the dead (Hebrews 11:17–19).

That matters because Abraham had finally reached something he could not reconcile.

God had promised Isaac.

God had asked for Isaac.

Those two things did not fit.

For much of his life, when God’s promises seemed impossible, Abraham had tried to help. He had schemed, protected himself, and tried to make circumstances fit what God had said.

But there was nothing Abraham could do with this.

So he stopped trying to make it fit.

God would have to be faithful to His own word.

“We will come back.”

Perhaps this is one of the deepest moments of faith in Abraham’s entire life.

He no longer had to understand God in order to trust Him.

Abraham placed the wood for the offering on Isaac, while he carried the fire and the knife.

And Genesis says:

“So the two of them went together.”
— Genesis 22:6

Those words are easy to pass over.

Though we often picture Isaac as a small child, Genesis never says that. He was strong enough to carry the wood, and ancient Jewish tradition commonly remembered him as a young man or adult.

Abraham had spent a lifetime learning the faithfulness of God.

Isaac had spent a lifetime watching Abraham learn it.

He had grown up inside these stories—the call, the promise, the waiting, the failures, the laughter that came when God finally did what He had said.

Before Abraham ever walked by faith, someone had told him the stories.

Now Isaac had grown up inside Abraham’s story.

Somewhere along the way, Abraham’s story of faith had become part of Isaac’s foundation of faith.

This is how faith is so often passed from one generation to another. Not merely through explanations, but through lives lived together. Stories remembered. Promises repeated. Failures witnessed. Faithfulness seen.

His-Story becoming their story.

As they walked, Isaac finally spoke.

“My father!”

Abraham answered:

“Here I am, my son.”

Isaac looked at what they were carrying.

“Look, the fire and the wood, but where is the lamb for a burnt offering?”
— Genesis 22:7

Abraham answered:

“My son, God will provide for Himself the lamb for a burnt offering.”
— Genesis 22:8

And then Genesis repeats:

“So the two of them went together.”
— Genesis 22:8

Not Abraham disappearing up the mountain alone.

The two of them went together.

We should be careful not to make the text say more than it says.

But perhaps there were two acts of trust on that mountain.

A father trusting God.

And a son trusting his father.

When they reached the place, Abraham built the altar and arranged the wood.

Then he bound Isaac and placed him upon it.

Genesis records no struggle.

Abraham reached out his hand and took the knife.

And suddenly a voice broke through the silence.

“Abraham, Abraham!”

Again Abraham answered:

“Here I am.”

Then came the words:

“Do not lay your hand on the lad, or do anything to him.”
— Genesis 22:12

The knife stopped.

Abraham lifted his eyes.

There, caught in a thicket by its horns, was a ram.

Abraham took it and offered it as a burnt offering “instead of his son” (Genesis 22:13).

Instead of Isaac.

The son came down from the altar.

Another sacrifice took his place.

Only a short time earlier Isaac had asked:

“Where is the lamb?”

And Abraham had answered:

“God will provide for Himself.”

Now Abraham could see what he had only trusted before.

So he named the place:

YHWH Yireh.

The LORD will provide.

Generations later, Scripture would identify Moriah with the mountain in Jerusalem where Solomon built the Temple (2 Chronicles 3:1).

The mountain of provision would remain part of Israel’s story.

And Christians cannot stand on that mountain without eventually hearing an echo from another story.

A beloved Son would again walk willingly toward sacrifice.

Jesus would say:

“No one takes it from Me, but I lay it down of Myself.”
— John 10:18

And John would later write:

“For God so loved the world that He gave His only begotten Son.”
— John 3:16

We do not need to force those words backward into Genesis.

Abraham said exactly what he said:

“God will provide for Himself the lamb.”

But we know more of His-Story than Abraham did.

Still, before we leave the mountain, we should return to Abraham.

His life had been a long journey of learning trust.

He trusted, became afraid, believed, tried to help, obeyed, stumbled—and again and again the Father remained faithful.

Until finally Abraham stood on a mountain holding the one thing that seemed absolutely necessary for God’s promise to come true.

Isaac.

And Abraham opened his hands.

Not because Isaac no longer mattered.

Not because Abraham understood.

But because after all these years, Abraham had finally learned something greater than understanding.

He had learned the Father.

Abraham had once thought the promise depended upon his ability to protect it.

On Moriah, he placed the promise itself back into the hands of the One who gave it.

And discovered that the Father was already there.

The provision was already there.

Abraham simply could not see it yet.

YHWH Yireh.

The LORD will provide.

When the Smoke Rose

Before reading this week’s reflection, I encourage you to slowly read Genesis 18:16 through Genesis 19.

When the Smoke Rose

The meal beneath Abraham’s tree is ending.

The visitors rise and look toward Sodom, and Abraham walks with them.

Then the LORD says something remarkable:

“For I have known him, in order that he may command his children and his household after him, that they keep the way of the LORD, to do righteousness and justice...”
— Genesis 18:19

And in the very next verse:

“Because the outcry against Sodom and Gomorrah is great...”
— Genesis 18:20

I don’t think we should move past that too quickly.

Abraham’s household is being formed around righteousness and justice.

Sodom is producing an outcry.

Someone is hurting.

Something happening in that city has produced a cry terrible enough to reach heaven.

And once again, the Father hears.

What Had Sodom Become?

Most of us know the Sunday School version.

Sodom was evil. God judged it. Fire fell.

But Scripture gives us a fuller picture.

Centuries later, Ezekiel looked back at Sodom:

“Look, this was the iniquity of your sister Sodom: She and her daughter had pride, fullness of food, and abundance of idleness; neither did she strengthen the hand of the poor and needy.”
— Ezekiel 16:49

Sodom had abundance.

But abundance had hardened into arrogance, and the vulnerable were suffering.

Ancient Jewish history and tradition preserve an even darker memory of Sodom—a wealthy society hostile toward strangers, cruel to the poor, and so hardened that acts of mercy themselves could be punished. One ancient account remembers a young woman killed for secretly feeding a starving man. Jewish teachers connected her cry with the outcry God heard from Sodom.

The Jewish memory of Sodom is remarkably consistent.

Cruelty had become part of the culture.

And Genesis has just shown us another kind of community.

When strangers arrived at Abraham’s home, he ran toward them. He gave them water, shade and food. He welcomed them beneath his tree.

Then those same visitors traveled toward Sodom.

At Abraham’s tent, the stranger was someone to be cared for.

In Sodom, the stranger became someone to be consumed.

Centuries later, Jesus would speak of the hungry, the thirsty, the naked and the stranger:

“Inasmuch as you did it to one of the least of these... you did it to Me.”
— Matthew 25:40

Abraham could not have known everything about the strangers standing beneath his tree when he ran to welcome them.

But somehow, in welcoming the stranger, Abraham had welcomed God.

Shall Not the Judge of All the Earth Do Right?

Before the messengers enter Sodom, Abraham stands before the LORD.

And Abraham is troubled.

“Shall not the Judge of all the earth do right?”
— Genesis 18:25

What if there are fifty righteous people?

Would You spare the city?

Yes.

Forty-five?

Forty?

Thirty?

Twenty?

Ten?

Each time, God agrees not to destroy the city.

What strikes me is what Abraham never says:

They’re wicked. Give them what they deserve.

Abraham pleads for them.

Ancient Jewish interpreters wrestled deeply with this conversation. Some even heard echoes of Noah’s flood in Abraham’s protest.

Judgment is difficult.

And apparently asking difficult questions about God’s judgment is not an act of rebellion.

Abraham did it standing before the LORD.

And God let him speak.

Abraham Was Still in Lot

By evening, the messengers arrive in Sodom.

Lot rises to meet them, brings them beneath his roof and prepares a meal.

That should sound familiar.

Something of Abraham was still alive in Lot.

But something of Sodom was there too.

When the men of the city surround his house and demand that the visitors be brought outside, Lot does something horrifying.

He offers them his daughters instead.

There is no reason to soften that. Whatever Lot thought he was doing to protect his guests, his moral judgment had become terribly distorted.

Lot had lived in Sodom long enough that Sodom had begun living in Lot.

That is frightening precisely because Lot is not a monster. He is Abraham’s nephew. He knows hospitality. He recognizes evil when it comes pounding at his door—and yet Sodom has changed the way he sees the world.

Perhaps the uncomfortable question is not, How do I keep bad people away from me?

It is:

What has become normal to me simply because it is normal where I live?

They Kept Looking for the Door

The situation becomes violent. The messengers pull Lot inside and strike the men outside with blindness.

But they don’t go home.

“And they struck the men who were at the doorway of the house with blindness, both small and great, so that they became weary trying to find the door.”
— Genesis 19:11

They wore themselves out trying to find it.

Blind. Confused. Unable to find the entrance that had been directly in front of them.

And still they kept reaching.

There is something terribly human about that picture.

Sometimes the most frightening blindness isn’t being unable to see the door, but being unable to imagine that perhaps we should stop looking for it.

Mercy Took Him by the Hand

Morning approaches.

The messengers tell Lot to take his family and leave.

But Genesis says:

“And while he lingered...”

Lot lingered.

After everything that happened during the night, after being warned that the city was about to be destroyed, he still had difficulty leaving.

So the messengers took hold of Lot, his wife and his daughters and brought them outside the city,

“the LORD being merciful to him.”
— Genesis 19:16

Lot did not run heroically toward salvation.

He hesitated.

So mercy took him by the hand.

Even this compromised man. Even after terrible choices. Even when told to run and still lingering.

The Father reached into Sodom and pulled him out.

Then the Fire Fell

And this is where I find the story difficult.

Sodom was wicked.

There were victims whose cries had reached heaven. There was violence, exploitation and cruelty.

But the people living there were still people.

Men. Women. Children. Families.

There were perpetrators and there were victims. There were people who had been born there and had never known another world.

It is easy for me to imagine myself safely standing beside Abraham.

I would have welcomed the strangers. I would never have become like those people.

But I don’t know that.

If I had been born in Sodom...

If my parents had been Sodomites...

If I had grown up breathing that air and learning those values...

I don’t know who I would have become.

And suddenly the people inside Sodom aren’t quite as easy to dismiss.

Then the fire fell.

“Then the LORD rained brimstone and fire on Sodom and Gomorrah, from the LORD out of the heavens.”
— Genesis 19:24

We could rush to explain it. We could build a theological defense of God or remind ourselves how wicked the city had become.

But Genesis doesn’t ask us to defend God.

It tells us what happened.

The fire fell.

And the cities were gone.

When the Smoke Rose

Early the next morning, Abraham got up.

“And Abraham went early in the morning to the place where he had stood before the LORD.”
— Genesis 19:27

The same place.

Yesterday Abraham had stood there pleading for the people of Sodom.

Now he returned and looked toward the plain.

“And he saw, and behold, the smoke of the land which went up like the smoke of a furnace.”
— Genesis 19:28

Genesis doesn’t tell us whether Abraham cried.

It doesn’t tell us whether he fell to his knees.

It doesn’t tell us what was going through his mind.

These were the people he had pleaded for.

His nephew was somewhere down there.

As far as Abraham knew, Lot and his family might have been gone too.

Yesterday Abraham stood in that place and pleaded.

This morning he stood in the same place...

and watched the smoke rise...

The LORD Comes to Dinner

Before reading this week’s reflection, I encourage you to slowly read Genesis 17 and the first half of Genesis 18.

The LORD Comes to Dinner

Thirteen years have passed.

That is easy to miss when we turn the page from one chapter to the next. When Ishmael was born, Abram was eighty-six years old. Then Genesis 17 begins:

“When Abram was ninety-nine years old, the LORD appeared to Abram...”
— Genesis 17:1

Ishmael is no longer the baby Hagar carried home from the wilderness. He is thirteen years old, becoming a young man. Abram is nearly one hundred. Sarai is nearly ninety. And the promise that began so many years earlier still has not been fulfilled.

Then the LORD appears.

The Father has not forgotten what He said. In fact, this time the promise becomes even more specific.

Abram will become Abraham. Sarai will become Sarah. Before anything has changed in their circumstances, the Father begins calling them by names that speak toward a future they cannot yet see.

And now He says it plainly. The promised son will not simply come from Abraham. He will come through Sarah.

“Sarah your wife shall bear you a son, and you shall call his name Isaac.”
— Genesis 17:19

Abraham falls on his face and laughs.

Perhaps we are too quick to call that unbelief. Abraham has spent years trusting the Father. He has left his homeland, built altars, stood beneath the stars, and watched the Father walk through blood and fire and place Himself behind His promise.

But Abraham is also almost one hundred years old. Sarah is almost ninety.

This is impossible.

And Abraham already has a son whom he loves.

“Oh, that Ishmael might live before You!”

I love the Father’s response:

“As for Ishmael, I have heard you. Behold, I have blessed him...”
— Genesis 17:20

There it is again: I have heard.

The God who heard Hagar in the wilderness has not stopped hearing. Ishmael will be blessed. But the promised son will come through Sarah.

His name will be Isaac.

Laughter.

The Promise Leaves a Mark

Then the Father gives Abraham the sign of circumcision.

For years the promise has concerned Abraham’s seed—the generations that will come from him. Now God places the covenant mark upon the very flesh through which that seed will come. Paul would later call circumcision a sign and seal of the faith Abraham already possessed. The mark did not create the promise; it testified that the promise belonged to God.

But we shouldn’t picture this as a small private ceremony involving Abraham and Ishmael.

Years earlier, Abraham had taken 318 trained men born in his own household into battle to rescue Lot. Those were only his fighting men born in the household. Abraham’s entire community included families, servants, shepherds, children, men purchased from foreign lands, and others living under his care.

This was an enormous household.

And now God said every male was to bear the mark.

Abraham at ninety-nine. Ishmael at thirteen. Grown men. Young boys. Those born in the household and those purchased from somewhere else.

This was intimate, bloody and painful. It affected hundreds of people throughout Abraham’s camp. Whatever mixture of ancient household authority, loyalty and trust was involved, these people followed Abraham into something extraordinarily personal because Abraham said the God he followed had spoken.

And Genesis tells us Abraham did it “that very same day.”

Then Genesis turns the page.

The LORD Comes to Dinner

“Then the LORD appeared to him by the terebinth trees of Mamre...”
— Genesis 18:1

Ancient Jewish tradition imagines this appearance as the Father visiting Abraham while he recovered from circumcision. Genesis doesn’t tell us that is why He came, but it is a tender picture preserved by people who had been pondering this story for generations.

What Genesis does tell us is remarkable enough.

Abraham is sitting at the entrance of his tent during the heat of the day when he looks up and sees three men.

And Abraham runs to meet them.

This ninety-nine-year-old patriarch, leader of an enormous household, runs from his tent and bows to the ground before strangers. He offers water for their feet and shade beneath the tree. He hurries to Sarah and asks her to make bread. Then he runs again to the herd, chooses a calf and has it prepared.

The covenant has just marked Abraham’s household as belonging to God. And almost immediately, we see that household opening itself to strangers.

Bread. Meat. Curds. Milk.

Abraham prepares a table for them.

Then comes a sentence we could easily read without feeling the weight of it:

“So he stood by them under the tree as they ate.”
— Genesis 18:8

They ate.

The Creator of the universe is sitting beneath a tree, eating dinner at Abraham’s home.

It is worth staying here for a moment.

This is the God who spoke light into darkness and hung the stars Abraham once stared at in the night sky. He formed humanity from dust and breathed life into its lungs. He shut Noah inside the ark, scattered Babel, and walked through Abraham’s covenant in smoke and fire.

And now Sarah is baking bread, Abraham is standing nearby serving his guests, and God is beneath their tree eating their food.

Perhaps that shouldn’t surprise us as much as it does.

Because isn’t this what the Father has wanted from the beginning?

Then another voice whispered that perhaps He could not be trusted. Suspicion entered where there had been intimacy. Shame replaced openness. Humanity hid from the very One who had come to walk with them.

Yet the Father’s desire did not change.

Through all the hiding, violence, wandering and mistrust, He continued moving toward humanity.

And here, beneath the trees of Mamre, we catch another glimpse of what He has wanted all along.

And this picture will keep appearing.

Centuries later, Jesus will sit at tables with His friends. He will eat with tax collectors and sinners, with people respectable religious men thought He should avoid. He will accept invitations into homes and invite Himself into others. Again and again, God in flesh will sit down and eat with people.

On the night before the cross, Jesus will gather His closest friends around a table. He will take bread into His hands, break it and pass it among them.

Then, astonishingly, death itself will not end this desire for simple human closeness.

After the resurrection, the disciples will come ashore after a long night on the water and discover Jesus beside a charcoal fire. Fish is cooking. Bread is waiting.

And the resurrected Lord says:

“Come and eat breakfast.”
— John 21:12

I love that.

The One who defeated death wanted breakfast with His friends.

And at the far end of the biblical story, John hears the same desire one more time:

“Behold, the tabernacle of God is with men, and He will dwell with them...”
— Revelation 21:3

The Father’s desire has never changed.

He wants to be with us.

And there, beneath Abraham’s tree, the conversation turns toward Sarah.

Sarah Laughs

“Where is Sarah your wife?”

She is inside the tent, listening.

Then the visitor says:

“I will certainly return to you according to the time of life, and behold, Sarah your wife shall have a son.”

Sarah laughs within herself.

Can we blame her? She knows her body. She knows Abraham’s age. She knows how long they have waited.

This isn’t merely unlikely anymore. It is impossible.

Then comes the question:

“Is anything too hard for the LORD?”
— Genesis 18:14

Sarah becomes frightened and denies laughing.

“I did not laugh.”

And the LORD answers:

“No, but you did laugh.”

I can’t help but smile at that exchange. There is something wonderfully personal about it.

Sarah laughed. The Father knew. And the promise remained.

He didn’t withdraw it. He didn’t search for a woman with stronger faith. He wasn’t threatened by her questions or her laughter. Her inability to imagine the promise did not limit His ability to fulfill it.

Eventually Sarah will hold that impossible little boy in her arms and laugh again:

“God has made me laugh, and all who hear will laugh with me.”
— Genesis 21:6

Paul later looks back at Abraham’s story and describes the One Abraham trusted as God “who gives life to the dead and calls those things which do not exist as though they did.” — Romans 4:17

That is the Father we’ve been discovering. The One who brings life where life seems impossible. The One who remembers promises after years have passed. The One who isn’t frightened by our questions. The One who hears us.

And the One who comes near.

Abraham had waited. Sarah had grown old. The promise seemed more impossible than ever.

He came beneath their tree. He ate their food. He listened to their laughter. He reminded them of His promise.

Sometimes the Father answers our fear by changing the circumstances.

And sometimes, before He changes anything at all...

He simply comes near.

🎧 Listen to this week’s reflection

He found her.

She knows what she is running from.
She doesn’t know where she is running to.

Ishmael.

God hears.

The Father could not.

Another woman.
Another complicated story.
Another well.

Different woman.
Different well.
Same God.

The Father sees people others overlook.

And He went looking for Hagar.

🎧 Listen to this week’s reflection

“But Father... You said.”

Abram sees no son.

The Father shows him generations.

Abram’s responsibility was faithfulness while he waited. The Father’s responsibility was fulfillment.

The Father walks the blood path alone.

I said it.
I will do it.
And the cost of this covenant rests upon Me.

This time, the Son of God was not walking between the pieces of another sacrifice.

He was walking toward becoming the sacrifice Himself.

God is willing to walk the blood path Himself.

“But Father... You said.”

He said it.
He will do it.
And He has always been willing to bear the cost.