Leviticus 25:44
"As for your male and maid slaves who will be with you, you may buy male and female slaves from among the nations.
Exodus 12:44
though any slave purchased with money may eat it after you have circumcised him.
Psalm 2:8-9
Ask of me, and I will give you the nations as your inheritance, the ends of the earth as your possession.
Isaiah 14:1-2
However, the LORD will have compassion on Jacob and will once again choose Israel. He will settle them in their own land, and foreigners will join them, affiliating themselves with the house of Jacob.
Revelation 2:26-27
To the person who conquers and continues to do what I've commanded to the end, I will give authority over the nations.