Treasury of Scripture Knowledge
You may lend with interest to a foreigner, but not to your fellow Israelite; if you keep this command the Lord your God will bless you in all you undertake in the land you are about to enter to possess.
"If you lend money to any of my people who are needy among you, do not be like a moneylender to him; do not charge him interest.
He said, "Yes." When Peter came into the house, Jesus spoke to him first, "What do you think, Simon? From whom do earthly kings collect tolls or taxes -- from their sons or from foreigners?"
The slave does not remain in the family forever, but the son remains forever.
1 Corinthians 6:6
Instead, does a Christian sue a Christian, and do this before unbelievers?
So then, whenever we have an opportunity, let us do good to all people, and especially to those who belong to the family of faith.