Genesis 16:10
And the angel of the LORD said to her, I will multiply your seed exceedingly, that it shall not be numbered for multitude.
Torrey's Topical Textbook—AKJV

Genesis 17:20
And as for Ishmael, I have heard you: Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation.
Torrey's Topical Textbook—AKJV