Genesis 21:1-6 GW

1 The LORD came to help Sarah and did for her what he had promised.
2 So she became pregnant, and at the exact time God had promised, she gave birth to a son for Abraham in his old age.
3 Abraham named his newborn son Isaac.
4 When Isaac was eight days old, Abraham circumcised him as God had commanded.
5 Abraham was 100 years old when his son Isaac was born.
6 Sarah said, "God has brought me laughter, and everyone who hears about this will laugh with me.