Genesis 21:2 in the King James Version
For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.
Context
1 The LORD visited Sarah as he had said, and the LORD did to Sarah as he had spoken.
2 Sarah conceived, and bore Abraham a son in his old age, at the set time of which God had spoken to him.
3 Abraham called his son who was born to him, whom Sarah bore to him, Isaac.