Genesis 21:9 KJV
And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking.
Genesis 21:7–11 KJV Chapter Context
7
And she said, Who would have said unto Abraham, that Sarah should have given children suck? for I have born him a son in his old age.
8
And the child grew, and was weaned: and Abraham made a great feast the same day that Isaac was weaned.
9
And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking.
10
Wherefore she said unto Abraham, Cast out this bondwoman and her son: for the son of this bondwoman shall not be heir with my son, even with Isaac.
11
And the thing was very grievous in Abraham’s sight because of his son.