Deuteronomy 23:20
You may charge a foreigner interest, but not your brother, so that the LORD your God may bless you in everything to which you put your hand in the land you are entering to possess.

Matthew 17:25, 26
"Yes, " he answered. When Peter entered the house, Jesus preempted him. "What do you think, Simon?" He asked. "From whom do the kings of the earth collect customs and taxes: from their own sons, or from others?" . . .

John 8:35
A slave is not a permanent member of the family, but a son belongs to it forever.

1 Corinthians 6:6, 7
Instead, one brother goes to law against another, and this in front of unbelievers! . . .

Galatians 6:10
Therefore, as we have opportunity, let us do good to everyone, and especially to the family of faith.