1 Corinthians 6:4-6

New Catholic Bible

⁴ Therefore, if you have such matters to resolve, how can you seek judgment from those who have no standing in the Church? ⁵ I write this to make you ashamed. Is it really possible that there is no one among you who is wise enough to mediate a dispute between brethren? ⁶ Why should a brother go to court against another brother, seeking a decision from unbelievers?