Genesis 20:14-21:7

14Then Abimelek brought sheep and cattle and male and female slaves and gave them to Abraham, and he returned Sarah his wife to him.

15And Abimelek said, “My land is before you; live wherever you like.”

16To Sarah he said, “I am giving your brother a thousand shekels That is, about 25 pounds or about 12 kilograms of silver. This is to cover the offense against you before all who are with you; you are completely vindicated.” 17Then Abraham prayed to God, and God healed Abimelek, his wife and his female slaves so they could have children again, 18for the LORD had kept all the women in Abimelek’s household from conceiving because of Abraham’s wife Sarah.

The Birth of Isaac 1Now the LORD was gracious to Sarah as he had said, and the LORD did for Sarah what he had promised. 2Sarah became pregnant and bore a son to Abraham in his old age, at the very time God had promised him. 3Abraham gave the name Isaac Isaac means he laughs. to the son Sarah bore him. 4When his son Isaac was eight days old, Abraham circumcised him, as God commanded him.

5Abraham was a hundred years old when his son Isaac was born to him. 6Sarah said, “God has brought me laughter, and everyone who hears about this will laugh with me.”

7And she added, “Who would have said to Abraham that Sarah would nurse children? Yet I have borne him a son in his old age.”