Leviticus 19:33
Never mistreat a foreigner living in your land.
Exodus 22:21
Do not mistreat or oppress a foreigner. Remember that you were foreigners in Egypt.
Exodus 23:9
Do not mistreat a foreigner. You know how it feels to be a foreigner. After all you were foreigners in Egypt.
Malachi 3:5
I will approach you people for judgment! I will be a swift witness against the sorcerers, the adulterers and those acting fraudulently with the wages of the worker, the widow and the fatherless. I will be a speedy witness against those who swear falsely and take advantage of the stranger, and do not show me reverence, said Jehovah of Hosts.
Deuteronomy 10:18-19
He executes justice for the orphan and the widow. He shows His love for the alien by giving him food and clothing.
Deuteronomy 24:14
Do not oppress a hired servant who is poor and needy, whether he is one of your brothers or one of your aliens who is in your land in your towns.
Jeremiah 7:6
if you do not oppress the alien, the orphan, or the widow, and do not shed innocent blood in this place, nor walk after other gods to your own ruin,
Ezekiel 22:7
People in you hate their fathers and mothers. They oppress foreigners in you. They oppress orphans and widows in you.'
Ezekiel 22:29
The people of the land have practiced oppression and committed robbery. They have wronged the poor and needy and have oppressed the sojourner without justice.'