Genesis 25:16
These were the sons of Ishmael, and these were their names, by their towns and by their settlements; twelve chiefs according to their nations.
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. He shall father twelve chiefs, and I will make him a great nation.
Genesis 17:23
And Abraham took his son Ishmael, and all that were born in his house, and all that were bought with his silver; every male among the men of Abraham's house; and circumcised the flesh of their foreskins in the same day, even as God said to him.
Treasury of Scripture Knowledge
Summary
These are the sons of Ishmael, and these are their names, by their towns, and by their castles; twelve princes according to their nations.
Twelve
Bible References
Twelve
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. He shall father twelve chiefs, and I will make him a great nation.