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Genesis 17

God defines his covenant with Abraham, appoints its bodily sign, and names Sarah’s promised son as its heir.

Abram is ninety-nine when God appears to him, declares his covenant, and changes his name to Abraham. God promises nations and kings from his descendants, gives Canaan to his offspring, and commands circumcision as the covenant’s sign. Sarai receives the name Sarah and the promise of a son, Isaac. Abraham laughs and pleads for Ishmael. God promises to bless Ishmael while establishing the covenant through Isaac. That same day, Abraham circumcises every male in his household.

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1When Abram was ninety-nine years old, the LORD appeared to Abram and said to him, “I am God Almighty. Walk before me and be blameless.
2I will make my covenant between me and you, and will multiply you exceedingly.”
3Abram fell on his face. God talked with him, saying,
4“As for me, behold, my covenant is with you. You will be the father of a multitude of nations.
5Your name will no more be called Abram, but your name will be Abraham; for I have made you the father of a multitude of nations.
6I will make you exceedingly fruitful, and I will make nations of you. Kings will come out of you.
7I will establish my covenant between me and you and your offspring after you throughout their generations for an everlasting covenant, to be a God to you and to your offspring after you.
8I will give to you, and to your offspring after you, the land where you are traveling, all the land of Canaan, for an everlasting possession. I will be their God.”
9God said to Abraham, “As for you, you shall keep my covenant, you and your offspring after you throughout their generations.
10This is my covenant, which you shall keep, between me and you and your offspring after you. Every male among you shall be circumcised.
11You shall be circumcised in the flesh of your foreskin. It will be a token of the covenant between me and you.
12He who is eight days old shall be circumcised among you, every male throughout your generations, he who is born in the house, or bought with money from any foreigner who is not of your offspring.
13He who is born in your house, and he who is bought with your money, must be circumcised. My covenant shall be in your flesh for an everlasting covenant.
14The uncircumcised male who is not circumcised in the flesh of his foreskin, that soul shall be cut off from his people. He has broken my covenant.”
15God said to Abraham, “As for Sarai your wife, you shall not call her name Sarai, but her name shall be Sarah.
16I will bless her, and moreover I will give you a son by her. Yes, I will bless her, and she will be a mother of nations. Kings of peoples will come from her.”
17Then Abraham fell on his face, and laughed, and said in his heart, “Will a child be born to him who is one hundred years old? Will Sarah, who is ninety years old, give birth?”
18Abraham said to God, “Oh that Ishmael might live before you!”
19God said, “No, but Sarah, your wife, will bear you a son. You shall call his name Isaac. I will establish my covenant with him for an everlasting covenant for his offspring after him.
20As for Ishmael, I have heard you. Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly. He will become the father of twelve princes, and I will make him a great nation.
21But I will establish my covenant with Isaac, whom Sarah will bear to you at this set time next year.”
22When he finished talking with him, God went up from Abraham.
23Abraham took Ishmael his son, all who were born in his house, and all who were bought with his money: every male among the men of Abraham’s house, and circumcised the flesh of their foreskin in the same day, as God had said to him.
24Abraham was ninety-nine years old when he was circumcised in the flesh of his foreskin.
26In the same day both Abraham and Ishmael, his son, were circumcised.
27All the men of his house, those born in the house, and those bought with money from a foreigner, were circumcised with him.
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Key verses
Genesis 17:7God commits himself to Abraham and his offspring across generations, making their relationship with him central to the covenant.
Genesis 17:1God’s declaration of his might frames both the unlikely birth promise and his command that Abram walk before him blameless.
Genesis 17:4The promise of many nations explains Abraham’s new name and stretches the covenant’s scope beyond a single household.
Where this chapter reaches

Romans takes up the promise that Abraham will father many nations and discusses circumcision in relation to his faith. Exodus recalls God’s covenant with Abraham and the promise of Canaan, while Acts recounts the covenant of circumcision and Isaac’s birth.

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Notice

After reading the whole chapter

What stands out to you about Abraham’s laughter, his plea for Ishmael, and his same-day obedience?

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How does God’s promise to be Abraham’s God shape your reading of the covenant’s commands?

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Questions people ask about Genesis 17

Why did God command circumcision in Genesis 17?

God appoints circumcision as the bodily sign of his covenant with Abraham and his offspring. The command includes every male in the household, including enslaved men born there or purchased, with newborn males circumcised at eight days old. Refusal is described as breaking the covenant and brings exclusion from the people.

Why did Abraham laugh in Genesis 17?

Abraham laughs after God promises that Sarah will bear a son. His inward questions focus on their ages: he will be a hundred, and Sarah ninety. The text does not label his laughter as joy or unbelief. God responds by confirming Sarah’s coming son, naming him Isaac, and setting the birth for the next year.

What does God promise Ishmael in Genesis 17?

In response to Abraham’s plea, God promises to bless Ishmael, make him fruitful, and multiply his descendants. Ishmael will father twelve princes and become a great nation. God distinguishes that blessing from the covenant he will establish with Isaac, Sarah’s promised son. Ishmael still receives circumcision with Abraham’s household.

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Cross-reference data from OpenBible.info (CC BY). Scripture from the World English Bible (public domain). Arc diagram after Chris Harrison and Christoph Römhild (2007).