Deuteronomy 23:16

He shall dwell with thee, even among you, in that place which he shall choose in one of thy gates, in any of the cities of Israel, where it liketh him best, he was at liberty to make such changes frequently, until he found a place which suited him in every respect; thou shalt not oppress him, he should be treated as a fellow-dweller in the good land of Jehovah, and there was always chance of his becoming a member of God's people.