28 Now you,¹ brothers, ^mlike Isaac, ⁿare children of promise.

16 I will bless her, and moreover, I will ^cgive¹ you a son by her. I will bless her, and ^dshe shall become nations; kings of peoples shall come from her.” 17 Then Abraham ^efell on his face ^fand 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!” 19 God said, “No, but ^gSarah your wife shall bear you a son, and you shall call his name ^hIsaac.² I will establish my covenant with him as an everlasting covenant for his offspring after him.

10 The Lord said, “I will surely return to you ^uabout this time next year, and ^vSarah your wife shall have a son.” And Sarah was listening at the tent door behind him.

14 ^aIs anything too hard¹ for the Lord? ^bAt the appointed time I will return to you, about this time next year, and Sarah shall have a son.”

The Birth of Isaac

21 The Lord ^kvisited Sarah as he had said, and the Lord did to Sarah ^las he had promised. 2 And Sarah ^mconceived and bore Abraham a son in his old age ⁿat the time of which God had spoken to him.

11 By faith ^ySarah herself received power to conceive, even when she was past the age, since she considered ^zhim faithful who had promised.