¹¹ By faith ^(A)Sarah herself received power to conceive, even when she was past the age, since she considered ^(B)him faithful who had promised. ¹² Therefore from one man, and ^(C)him as good as dead, were born descendants ^(D)as many as the stars of heaven and as many as the innumerable grains of sand by the seashore.

Isaac's Birth Promised

¹⁵ And God said to Abraham, “As for Sarai your wife, you shall not call her name Sarai, but Sarah^[a] shall be her name. ¹⁶ I will bless her, and moreover, I will ^(A)give^[b] you a son by her. I will bless her, and ^(B)she shall become nations; kings of peoples shall come from her.” ¹⁷ Then Abraham ^(C)fell on his face ^(D)and laughed and said to himself, “Shall a child be born to a man who is a hundred years old? Shall Sarah, who is ninety years old, bear a child?” ¹⁸ And Abraham said to God, “Oh that Ishmael might live before you!”

The Birth of Isaac

21 The Lord ^(A)visited Sarah as he had said, and the Lord did to Sarah ^(B)as he had promised. ² And Sarah ^(C)conceived and bore Abraham a son in his old age ^(D)at the time of which God had spoken to him. ³ Abraham called the name of his son who was born to him, whom Sarah bore him, ^(E)Isaac.^{[a] 4} And Abraham ^(F)circumcised his son Isaac when he was eight days old, ^(G)as God had commanded him. ^5 (H)Abraham was a hundred years old when his son Isaac was born to him. ⁶ And Sarah said, ^(I)“God has made laughter for me; everyone who hears will laugh over me.” ⁷ And she said, “Who would have said to Abraham that Sarah would nurse children? ^(J)Yet I have borne him a son in his old age.”