Genesis 20:17-21:3

MSB(i) 17 Then Abraham prayed to God, and God healed Abimelech and his wife and his maidservants, so that they could again bear children— 18 for on account of Abraham’s wife Sarah, the LORD had completely closed all the wombs in Abimelech’s household. 21 1 Now the LORD attended to Sarah as He had said, and the LORD did for Sarah what He had promised. 2 So Sarah conceived and bore a son to Abraham in his old age, at the very time God had promised. 3 And Abraham gave the name Isaac to the son Sarah bore to him.