1 Corinthians 6:6-8

Amplified Bible

⁶ but instead, brother goes to law against brother, and that before [judges who are] unbelievers?

⁷ Why, the very fact that you have lawsuits with one another is already a defeat. Why not rather be wronged? Why not rather be defrauded? ⁸ On the contrary, it is you who wrong and defraud, and you do this even to your brothers and sisters.