Genesis 36:31

“And I will bless her, and indeed I will give you a son by her. Then I will bless her, and she shall be a mother of nations; kings of peoples will come from her.”

God also said to him, “I am God Almighty; Be fruitful and multiply; A nation and an assembly of nations shall come from you, And kings shall come forth from your loins.

From Kadesh Moses then sent messengers to the king of Edom: “Thus your brother Israel has said, ‘You know all the hardship that has befallen us,

Now these are the kings who reigned in the land of Edom before any king of the sons of Israel reigned. Bela was the son of Beor, and the name of his city was Dinhabah.