1The LORD visited Sarah just as he had said, and the LORD did for Sarah just as he had spoken.2Sarah conceived and gave birth to a son for Abraham in his old age at the appointed time of which God had spoken to him.3Abraham called the name of his son who had been born to him, whom Sarah bore to him, Isaac.4Abraham circumcised his son Isaac when he was eight days old, just as God had commanded him.5Abraham was one hundred years old when his son Isaac was born to him.6Sarah said, "God has made laughter for me; all who hear will laugh with me."7She said, "Who would have told Abraham that Sarah would nurse children? For I have borne a son in his old age."