Genesis 21:1-7 TMB

1 And the LORD visited Sarah as He had said, and the LORD did unto 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 unto him, whom Sarah bore to him, Isaac.
4 And Abraham circumcised his son Isaac, being eight days old, as God had commanded him.
5 And Abraham was a hundred years old when his son Isaac was born unto him.
6 And Sarah said, "God hath made me laugh, so that all who hear will laugh with me."
7 And she said, "Who would have said unto Abraham that Sarah should have given children suck? For I have borne him a son in his old age."