Genesis 17:15-17

Verses covered in this passage:

  • Genesis 17:15
  • Genesis 17:16
  • Genesis 17:17

Genesis is a book about many beginnings. The beginnings of the world, the human race, sin and redemption, and the nation of Israel to name a few. In fact, the word Genesis from the Greek means “origin,” and in Hebrew it means “beginning.” The book of Genesis contains the events of the flood, tower of Babel, Sodom and Gomorrah, and the lives of the Patriarchs.

In the beginning, God created everything by simply speaking, “God said…and it was so” (Genesis 1:6-7, 9, 11, 14-15). This is not a scientific technical account of creation, but it shows a loving God creating a universe and mankind to rule it and fellowship with God. Man was formed especially from the ground and given the breath of life from God. The woman was made from the man’s rib (Genesis 2:7).

After man fell into sin, things began to spin out of control quickly. Cain murdered his brother Abel and the human race became so violent that God decided to destroy them all with a flood. God saved one righteous man (Noah) and his family in an ark filled with animals to deliver the human race from extinction. God chose Abraham and blessed a special group of people named “Israel.” God began to unfold a plan of salvation from a coming famine by sending Joseph to rule in Egypt. The failure of man in every circumstance is met by the salvation of God. We fail, but the good news is God saves us.

The Abrahamic covenant is confirmed in part and expanded to include a provision that is conditional. God adds a mutual provision, with conditions for Abraham to meet in order to receive added blessings. Abram and Sarai’s names are changed by God. The sign of the covenant, circumcision, is established and the promise of Isaac and his descendants is given. The events of chapter 17 take place 13 years after chapter 16.

God changes Sarai’s name to Sarah and promises she will birth a son. Abraham laughed that a man 100 and his wife 90 years old could have a child.

God blesses Sarai by changing her name, Sarah shall be her name. Sarah became the “princess” or “woman of nobility” of the covenant to Abraham. Both names mean “princess.” However, now Sarah would be a princess of God. The change in name indicated the multitude of people who would come forth from her; many kings, nations, and leaders would come from her children. Sarah was the mother of the son of the promise, Isaac, by a special act of God (Genesis 17:19-22, 18:7-15, 21:1-6). Isaiah called her the mother who gave birth to Zion, which means Israel (Genesis 51:2). 

God’s second blessing to Sarah is the announcement that He will give you a son by her. This is the first time that God says Abraham will have a son by Sarah. God had promised a son before but never said that Sarah would be the mother. Abraham was given assurance by God that Sarah would be the mother of the son He had promised. This is significant because of Sarah’s age. Another blessing to Sarah is God declaring that she will become a mother of nations and that kings of peoples will come from her

Then Abraham fell on his face and laughed. One cannot know exactly what kind of laugh this was; perhaps a simple smile, chuckle, or a loud outburst. The context shows it expressed how incredible it was for Sarah to have a child due to her age. The next passage shows that Abraham had come to believe the promised line would come through Ishmael.

Biblical Text

15 Then God said to Abraham, “As for Sarai your wife, you shall not call her name Sarai, but Sarah shall be her name. 16 “I will bless her, and indeed I will give you a son by her. Then I will bless her, and she shall be a mother of nations; kings of peoples will come from her.” 17 Then Abraham fell on his face and laughed, and said in his heart, “Will a child be born to a man one hundred years old? And will Sarah, who is ninety years old, bear a child?

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