Genesis 21:2

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

Genesis 21:2 · King James Version

In other versions

And Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.
ASV
And Sarah became with child, and gave Abraham a son when he was old, at the time named by God.
BBE
And Sarah conceived, and bore Abraham a son in his old age, at the appointed time of which God had spoken to him.
DBY
Sarah conceived, and bore Abraham a son in his old age, at the set time of which God had spoken to him.
WEB
and Sarah conceiveth, and beareth a son to Abraham, to his old age, at the appointed time that God hath spoken of with him;
YLT
For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.
ENG
For Sarah conceived and bore Abraham a son in his old age, at the set time of which God had spoken to him.
WBT
So Sarah conceived and bore a son to Abraham in his old age, at the very time God had promised.
BSB

¹And the LORD visited Sarah as he had said, and the LORD did unto Sarah as he had spoken.

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

³And Abraham called the name of his son that was born unto him, whom Sarah bare to him, Isaac.

⁴And Abraham circumcised his son Isaac being eight days old, as God had commanded him.