GENESIS 21:1-8

AND the LORD visited Sarah as He had said, and the LORD did for Sarah as He had spoken.

2 For Sarah conceived and bore Abraham a son in his old age, at the set time of which God had spoken to him.

3 And Abraham called the name of his son who was born to him - whom Sarah bore to him - Isaac.

4 Then Abraham circumcised his son Isaac when he was eight days old, as God had commanded him.

5 Now Abraham was one hundred years old when his son Isaac was born to him.

6 And Sarah said, “God has made me laugh, and all who hear will laugh with me.”

7 She also said, “Who would have said to Abraham that Sarah would nurse children? For I have born him a son in his old age.”

8 So the child grew and was weaned. And Abraham made a great feast in the same day that Isaac was weaned.