Genesis 21:2 KJV
For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.
Genesis 21:1–5 KJV Chapter Context
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 bare 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 that was born unto him, whom Sarah bare to him, Isaac.
4
And Abraham circumcised his son Isaac being eight days old, as God had commanded him.
5
And Abraham was an hundred years old, when his son Isaac was born unto him.