Leviticus 25:44

And thy servant and thy maid which shall be to thee, from the nations which are round about you, from them ye shall buy servant and maid.

Exodus 12:44

And every servant of a man bought with silver, and thou hast circumcised him, then he shall eat of it

Psalm 2:8-9

Ask of me and I will give the nations thine inheritance, and thy possession the extremities of the earth.

Isaiah 14:1-2

For Jehovah will pity Jacob, and he yet chose in Israel, and he gave them rest upon their land: and the stranger was joined to them, and they joined themseves to the house of Jacob.

Revelation 2:26-27

And he conquering, and keeping my works till the end, I will give him 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
And every servant of a man bought with silver, and thou hast circumcised him, then he shall eat of it
Psalm 2:8
Ask of me and I will give the nations thine inheritance, and thy possession the extremities of the earth.
Isaiah 14:1
For Jehovah will pity Jacob, and he yet chose in Israel, and he gave them rest upon their land: and the stranger was joined to them, and they joined themseves to the house of Jacob.
Revelation 2:26
And he conquering, and keeping my works till the end, I will give him power over the nations: