The Birth of Isaac
1 The Lord came to Sarah as he had said, and the Lord did for Sarah what he had promised. 21:1 Gn 17:16; 18:10; Gl 4:232 Sarah became pregnant and bore a son to Abraham in his old age, at the appointed time God had told him. 21:2 Gn 17:21; 18:10,14; Heb 11:113 Abraham named his son who was born to him — the one Sarah bore to him — Isaac. 21:3 Gn 17:195 Abraham was a hundred years old when his son Isaac was born to him. 21:5 Gn 17:1,17; Rm 4:19
6 Sarah said, "God has made me laugh, and everyone who hears will laugh with me." 21:6 Isaac = He Laughs; Gn 17:19, 21:6 Gn 18:12–157 She also said, "Who would have told Abraham that Sarah would nurse children? Yet I have borne a son for him 21:7 Sam, Tg Jonathan; MT omits him in his old age."