The Common Man's Commentary

Genesis Chapter 17 The Adoption

Study Genesis 17 verse by verse and explore El Shaddai, God's renewed covenant with Abraham, the new names given to Abraham and Sarah, circumcision as the covenant sign, and God's promise that Isaac would carry forward the covenant.

Genesis 17 reveals the God who is enough, gives His people a new identity, and remains faithful to His promise despite human doubt.

Chapter overview

The Adoption

In our study of Genesis chapter seventeen, we will look at the adoption contract between God and Avram and its impact on our world today.

God appears as El Shaddai, renews the covenant, changes Avram's identity, gives the covenant sign, renames Sarai, and announces that Isaac will be born through Sarah. The chapter emphasizes the authority, provision, and faithfulness of God.

  • God calls Himself El Shaddai, the God who is enough, and calls Avram to walk in His presence.
  • God gives Avram and Sarai new names that reflect their renewed identity and covenant purpose.
  • God establishes circumcision as a covenant sign and confirms that Isaac, not Ishmael, will carry the covenant line.

Genesis Chapter Seventeen

The Adoption

Read Genesis 17 verse by verse, including God's revelation as El Shaddai, Abraham and Sarah's new names, the covenant sign, the promise of Isaac, the blessing of Ishmael, and Abraham's obedient response.

Translation notes: Scripture quotations in this study are from the Complete Jewish Bible (CJB). The commentary explores the biblical text, Hebrew word background, and connections to the larger story of Scripture.

Genesis Chapter 17 Verse-by-Verse Commentary

Genesis 17:1 & 2

When Avram was 99 years old ADONAI appeared to Avram and said to him, "I am El Shaddai. Walk in my presence and be pure-hearted. I will make my covenant between me and you, and I will increase your numbers greatly."

Now, we see that God identifies Himself as El Shaddai, which is often translated as “God Almighty,” but it is actually made up of three Hebrew words that literally mean “the God that is enough.” This description reminds Avram, as well as us, that we know God through the experiences of Him acting in our lives.

Avram is instructed to continually walk with God and doing so will cause him to be pure-hearted. The Hebrew word “tamim” is translated here as pure-hearted, and it means to recognize your insufficiency which causes you to rely on God.

The Hebrew word “meod” is translated here as “greatly,” but it is actually used twice in the Hebrew texts and it speaks of the fact that the effect will be both in this world and in eternity.

Why did God appear to Avram again to confirm the promise that had already been given? In chapter 16, we saw Avram have a lapse of faith and the result was a son named Ishmael. Now, God appears to Avram and reminds him that He is El Shaddai, the One who has the ability to provide.

In a time of doubt, Avram had conceived a son, but God reminds him that it was not the son that He had promised. We also see how much God loves children in the fact that He tells Avram to walk before Him and be blameless even though the son was not the promised child.

Like Avram, we all have lapses of faith in our lives, but God also calls us to accept His forgiveness. Through Jesus Christ, we can also be blameless.

Name of God · Genesis 17:1

אֵל שַׁדַּי El Shaddai God Almighty; explained in this study as the God who is enough and able to provide.

Genesis 17:3–5

Avram fell on his face, and God continued speaking with him: "As for me, this is my covenant with you: you will be the father of many nations. Your name will no longer be Avram, but your name will be Avraham, because I have made you the father of many nations."

Avram fell facedown in worship of God, which is the normal reaction when a man comes into the presence of El Shaddai. We see God's authority over Avram's life established by the changing of his name to Avraham.

The custom of the day was that the father of a child chose the name of his child. In renaming Avram, it was established that he was adopted into the family of God. As the head of the family, it was God's right and duty to give him a new name that was fitting.

While Avram meant “exalted father,” Avraham means “father of many,” which was in keeping with God's promise to him.

As Christians, we too will be given a new name by the One who has authority. This new name will be written on a white stone and will only be known by the bearer of the stone. See Revelation 2:17. This too is a demonstration of God's love and authority over our new lives.

Genesis 17:6–8

I will cause you to be very fruitful. I will make nations of you, kings will descend from you. "I am establishing my covenant between me and you, along with your descendants after you, generation after generation, as an everlasting covenant, to be God for you and for your descendants after you. I will give you and your descendants after you the land in which you are now foreigners, all the land of Kena'an, as a permanent possession; and I will be their God."

Once again, we see the Hebrew word “meod” twice in the Hebrew texts and translated here as “very,” but we must remember that it is speaking of both this world and eternity.

God promises that kings would come from Avraham and, although it could refer to the kings of Israel as well as Jesus Christ, it also refers to the fact that we, as followers of Jesus Christ, are a royal priesthood or servants of the King of Kings.

God gives His obligations and promises as part of the adoption contract. He renewed the promise of children and also the possession of the land of Canaan.

This land is the country of Israel today and, even though there is much arguing about who owns the land, we can say that all of it belongs to Israel. We should take note that God said it was their everlasting land and so cannot be given or taken away by any man.

Genesis 17:9–11

God said to Avraham, "As for you, you are to keep my covenant, you and your descendants after you, generation after generation. Here is my covenant, which you are to keep, between me and you, along with your descendants after you: every male among you is to be circumcised. You are to be circumcised in the flesh of your foreskin; this will be the sign of the covenant between me and you."

Every contract has rights and responsibilities and now God lays out Avraham's responsibility. This contract was to be binding on all of his descendants and they were all to be circumcised.

This physical sign was a picture of the coming circumcision of the heart.

Genesis 17:12–14

Generation after generation, every male among you who is eight days old is to be circumcised, including slaves born within your household and those bought from a foreigner not descended from you. The slave born in your house and the person bought with your money must be circumcised; thus my covenant will be in your flesh as an everlasting covenant. Any uncircumcised male who will not let himself be circumcised in the flesh of his foreskin—that person will be cut off from his people, because he has broken my covenant."

We see a picture of what is known as the age of accountability in the fact that boys were not required to be circumcised until they were eight days old. Throughout the Bible, the number eight is associated with resurrection and a new creation.

This is a reminder that, with the circumcision, the males were being set apart and marked as God's people. This physical circumcision marking was a shadow of the mark that we have through the Holy Spirit as Christians.

We also see that this covenant was made available to Gentiles who were purchased by Avraham and his descendants. This was a stumbling block for the early church as they did not understand that Jesus came for the Gentiles as well as the Jews, and it was pictured in the covenant of circumcision.

Finally, we see that the punishment for not going through with the act of circumcision was that they were to be cut off, separated, from their people. In the same way, those who reject the circumcision of the heart through Jesus Christ will be separated from God for all eternity. God is just in this because they have broken the terms of the contract.

Genesis 17:15 & 16

God said to Avraham, "As for Sarai your wife, you are not to call her Sarai; her name is to be Sarah. I will bless her; moreover, I will give you a son by her. Truly I will bless her: she will be a mother of nations; kings of peoples will come from her."

God changed Sarai's name, which means mockery, to Sarah, which means princess, and we are reminded that, when God changes a person's name, it is a reminder that they have become His children.

He renews His promise to provide sons to carry on the covenant.

New identity · Genesis 17:15

שָׂרָה Sarah Princess; the new name given to Sarai as God confirms the promised son will come through her.

Genesis 17:17 & 18

At this Avraham fell on his face and laughed—he thought to himself, "Will a child be born to a man a hundred years old? Will Sarah give birth at ninety?" Avraham said to God, "If only Yishma'el could live in your presence!"

We notice that Abraham fell facedown as God spoke to him, which is the normal reaction for men. Then, he laughed in unbelief as he could not get past the physical limitations of man.

In his unbelief, he asked God to bless Ishmael instead of trusting in God's promise. This unbelief has built a lasting legacy as even today the descendants of Ishmael reject the promise of God which was made known through His Son, Jesus Christ.

Genesis 17:19–22

God answered, "No, but Sarah your wife will bear you a son, and you are to call him Yitz'chak. I will establish my covenant with him as an everlasting covenant for his descendants after him. But as for Yishma'el, I have heard you. I have blessed him. I will make him fruitful and give him many descendants. He will father twelve princes, and I will make him a great nation. But I will establish my covenant with Yitz'chak, whom Sarah will bear to you at this time next year." With that, God finished speaking with Avraham and went up from him.

God agreed to bless Ishmael, meaning Avraham would not have to worry about producing a son like he had worried. Instead, God promised that Ishmael would be the father of twelve rulers and a great nation.

This great nation speaks of the fact that they would be great in number but not great in pleasing God. This great nation was speaking of those who follow the teachings of Islam.

Although God agreed to bless Ishmael, He made it clear that the descendants of Isaac would be known as His people. Ishmael would be the father of a great nation but not the father of the promised nation.

This was said twice in this passage and we must remember that, throughout the Bible, the number two is associated with truth as matters were established on the word of two witnesses.

Promised son · Genesis 17:19

יִצְחָק Yitz'chak Isaac; the son through whom God says He will establish the everlasting covenant.

Genesis 17:23–27

Avraham took Yishma'el his son, all the slaves born in his house and all who had been bought with his money, every male among the people in Avraham's household, and circumcised the flesh of their foreskin that very day, just as God had said to him. Avraham was ninety-nine years old when he was circumcised in the flesh of his foreskin, and Yishma'el his son was thirteen years old when he was circumcised in the flesh of his foreskin. Avraham and Yishma'el his son were circumcised on the same day; and all the men in his household, both slaves born in his house and those bought with money from a foreigner, were circumcised with him.

We see that Avraham was obedient and all the males in his household were circumcised. This confirmed the covenant and was a physical sign to the world of God's giving them the land of Canaan and being their God.

This was a picture of the covenant of Christ that was to come through His blood and the circumcision of men's hearts.

Hebrew context

Key Hebrew Words in Genesis Chapter 17

These terms highlight God's sufficiency, the covenant, new identity, purity of heart, blessing, and the promised son through whom the covenant line would continue.

Genesis 17:1

אֵל שַׁדַּי

El Shaddai

God Almighty

El Shaddai is traditionally translated God Almighty. The study explains the name as the God who is enough, emphasizing His ability to provide what Abraham could not provide for himself.

Genesis 17:1

תָּמִים

Tamim

Pure-Hearted or Blameless

Tamim is translated pure-hearted in the study and is explained as recognizing personal insufficiency, which leads a person to rely upon God.

Genesis 17:2 and 6

מְאֹד

Meod

Greatly or Very

Meod appears twice in the Hebrew text in this chapter. The study connects the repetition to an effect in both this world and eternity.

Genesis 17:5

אַבְרָהָם

Avraham

Father of Many

Avram, exalted father, becomes Avraham, father of many. The changed name expresses the promise that nations would come from him and marks his adoption into God's family.

Genesis 17:15

שָׂרָה

Sarah

Princess

Sarai becomes Sarah, explained in this study as princess. Her new name accompanies God's promise that she would become a mother of nations and that kings would come from her.

Genesis 17:19

יִצְחָק

Yitz'chak

Isaac

Isaac is the son promised through Sarah. God says that the everlasting covenant would be established with Isaac and his descendants after him.

Messianic Themes in Genesis Chapter 17

Messianic themes

A New Name and New Identity

God's renaming of Avram to Avraham, marking his adoption into God's family, foreshadows the new identity every believer receives through Yeshua. Just as Abraham received a new name reflecting his new purpose, Revelation 2:17 promises believers a new name known only to them and God, a lasting sign of belonging to Him.

Circumcision of the Heart

The physical sign of circumcision given in this chapter is a shadow of a greater spiritual reality: the circumcision of the heart that comes through faith in Yeshua. Just as this covenant sign was extended even to Gentiles purchased into Abraham's household, the New Testament reveals that the promise of the covenant was always meant to reach beyond Israel to all who believe.

A Promise Kept Despite Doubt

Abraham laughed in disbelief and asked God to simply bless Ishmael instead, yet God remained faithful to His original promise, establishing His covenant specifically through Isaac. This pattern—God's faithfulness prevailing over human doubt—points forward to the certainty of the promises fulfilled in Yeshua.

Take the study further

Reflect, Connect, and Continue

Use these study elements to consider God's sufficiency, a new identity in Him, covenant faithfulness, the spiritual meaning of circumcision, and God's promise remaining firm in the face of doubt.

Did You Know?

El Shaddai and God's Sufficiency

The Hebrew name El Shaddai, traditionally translated God Almighty, is also understood by many Hebrew scholars as emphasizing the God who is sufficient. Either understanding highlights the chapter's central reassurance: God's power and sufficiency are more than enough to fulfill the promise made to Abraham.

Key Takeaway

God Gives Identity and Keeps Promise

God gives Abraham and Sarah new names, confirms His covenant, and specifies the promised son through whom the covenant will continue. Human doubt does not cancel God's authority, faithfulness, or ability to fulfill His word.

Questions for Reflection

Consider the Passage

  1. What does it mean to you that God renamed Abram and Sarai as a sign of their new identity and purpose?
  2. How does the requirement of circumcision as a physical sign help you understand the New Testament picture of a circumcised heart?
  3. Why do you think Abraham's request for God to simply bless Ishmael reveals a struggle to fully trust God's specific promise?
  4. What comfort do you find in knowing that God's covenant promises remained firm even in the face of Abraham's doubt and laughter?

Related Scriptures

Continue the Study

  • Genesis 16 — Abram's earlier lapse of faith resulting in Ishmael, addressed directly by God in this chapter.
  • Revelation 2:17 — The promise of a new name for believers, echoing God's renaming of Abram and Sarai.
  • Romans 2:29 — Paul's teaching on true circumcision being of the heart, fulfilling the picture given in this chapter.

An Identity Pattern

God Names His Children

Abraham's new name reflects the purpose God gives him. The chapter presents God's renaming as an expression of fatherly authority, covenant relationship, and the new identity received by belonging to Him.

An Obedience Pattern

Respond Without Delay

After God speaks, Abraham circumcises the males in his household that very day. The chapter closes with a practical picture of trusting God enough to obey what He has said.

Verse-by-verse chapter studies

Read Through Genesis Chapter by Chapter

Move through Genesis in order or select a chapter that connects with your current personal study, family study, small group, or teaching preparation.

Genesis Chapter 17 is the current study page. Return to Genesis 16 to review the birth of Ishmael, or continue to Genesis 18 to follow the next appearance of ADONAI and the renewed promise of Isaac.

Continue the Bible's story

Connect Genesis 17 to the Gospel

Follow the themes of covenant identity, new names, circumcision of the heart, God's promise through Isaac, and the faithfulness of God when human faith wavers.

The lapse God addresses

Hagar and Ishmael

Genesis 16 records Avram and Sarai's attempt to fulfill God's promise through Hagar and the birth of Ishmael. Genesis 17 directly addresses Ishmael while confirming that Isaac will carry the covenant promise.

Study Genesis 16

A new name for believers

New Identity in Revelation

Abraham and Sarah receive new names from God. Revelation 2:17 promises a new name for believers, expressing belonging, identity, and the authority of God over the new life He gives.

Study Revelation 2

The promised son draws near

Isaac Promised Again

Genesis 18 continues the story when ADONAI visits Abraham and announces again that Sarah will bear a son at the appointed time.

Study Genesis 18

Continue your study

Go Deeper With Bible Study Workbooks and Teacher Guides

Use the free Genesis studies on this site as your starting point, then continue your learning with Bible-study student workbooks and teacher guides by Rabbi Rich for personal study, families, small groups, and teaching settings.

Continue the journey

Continue From Covenant to Promise Fulfilled

Genesis 17 confirms God's covenant with Abraham and Sarah and names Isaac as the covenant son. Continue to Genesis 18 to study the renewed announcement that Sarah will bear the promised child.