Leviticus 25:44

Both your male slaves, and your female slaves whom you shall have, shall be of the nations that are all around you. You shall buy male slaves and female slaves from them.

Exodus 12:44

But every man's servant that is bought for silver, when you have circumcised him, then he shall eat of it.

Psalm 2:8-9

Ask of Me, and I shall give the nations for Your inheritance; and the uttermost parts of the earth for Your possession.

Isaiah 14:1-2

For Jehovah will have mercy on Jacob, and will yet choose Israel and set them in their own land; and the stranger shall be joined with them, and they shall cling to the house of Jacob.

Revelation 2:26-27

And he who overcomes and keeps My works to the end, to him I will give power over the nations.

Treasury of Scripture Knowledge

Summary

Both thy bondmen, and thy bondmaids, which thou shalt have, shall be of the heathen that are round about you; of them shall ye buy bondmen and bondmaids.

Bible References

General references

Exodus 12:44
But every man's servant that is bought for silver, when you have circumcised him, then he shall eat of it.
Psalm 2:8
Ask of Me, and I shall give the nations for Your inheritance; and the uttermost parts of the earth for Your possession.
Isaiah 14:1
For Jehovah will have mercy on Jacob, and will yet choose Israel and set them in their own land; and the stranger shall be joined with them, and they shall cling to the house of Jacob.
Revelation 2:26
And he who overcomes and keeps My works to the end, to him I will give power over the nations.