¹⁰ Then one of them said, “I will surely return to you about this time next year,^(A) and Sarah your wife will have a son.”^(B)

Now Sarah was listening at the entrance to the tent, which was behind him.

² Sarah became pregnant and bore a son^(A) to Abraham in his old age,^(B) at the very time God had promised him.^(C)

²¹ But my covenant^(A) I will establish with Isaac, whom Sarah will bear to you^(B) by this time next year.”^(C)

⁸ In other words, it is not the children by physical descent who are God’s children,^(A) but it is the children of the promise who are regarded as Abraham’s offspring.^{(B) 9} For this was how the promise was stated: “At the appointed time I will return, and Sarah will have a son.”^[a](C)

¹⁹ Then God said, “Yes, but your wife Sarah will bear you a son,^(A) and you will call him Isaac.^[a](B) I will establish my covenant with him^(C) as an everlasting covenant^(D) for his descendants after him.