THE BIRTH OF ISAAC

21 The Lord came to Sarah as he had said, and the Lord did for Sarah what he had promised.l 2 Sarah became pregnant and bore a son to Abraham in his old age, at the appointed time God had told him.m 3 Abraham named his son who was born to him—the one Sarah bore to him—Isaac.n 4 When his son Isaac was eight days old, Abraham circumcised him, as God had commanded him.o 5 Abraham was a hundred years old when his son Isaac was born to him.p