Genesis 21:1-4

NSB(i) 1 Jehovah was gracious to Sarah, as he had said. Jehovah did for Sarah what he had promised. 2 Sarah became pregnant and bore a son to Abraham in his old age. It was at the very time God had promised him. 3 Abraham gave the name Isaac (he laughs) to the son Sarah bore him. 4 When his son Isaac was eight days old, Abraham circumcised him as God had commanded him.