The Birth of Isaac

21 Now the Lord was gracious to Sarah^(A) as he had said, and the Lord did for Sarah what he had promised.^{(B) 2} Sarah became pregnant and bore a son^(C) to Abraham in his old age,^(D) at the very time God had promised him.^{(E) 3} Abraham gave the name Isaac^[a](F) to the son Sarah bore him. ⁴ When his son Isaac was eight days old, Abraham circumcised him,^(G) as God commanded him. ⁵ Abraham was a hundred years old^(H) when his son Isaac was born to him.

⁶ Sarah said, “God has brought me laughter,^(I) and everyone who hears about this will laugh with me.” ⁷ And she added, “Who would have said to Abraham that Sarah would nurse children? Yet I have borne him a son in his old age.”^(J)

⁴ But when the set time had fully come,^(A) God sent his Son,^(B) born of a woman,^(C) born under the law,^{(D) 5} to redeem^(E) those under the law, that we might receive adoption^(F) to sonship.^{[a](G) 6} Because you are his sons, God sent the Spirit of his Son^(H) into our hearts,^(I) the Spirit who calls out, “Abba,^[b] Father.”^(J)