1 Corinthians 6:7

By hauling one another into court the Corinthians were intent on winning damages for themselves. Evidently a business or property dispute was the root of this case (cf. 1 Corinthians 6:10). Paul reminded them that they had already lost before the judge gave his verdict. The shame of people who professed to love one another and put the welfare of others before their own suing each other was a defeat in itself. This defeat was far more serious than any damages they may have had to pay. It would be better to suffer the wrong or the cheating than to fight back in such an unchristian way (Matthew 5:39-40; 1 Peter 2:19-24).

"It is possible that this use of meth heauton ["with your own selves"] for met allelon ["with one another"] is deliberate, in order to show that in bringing a suit against a fellow-Christian they were bringing a suit against themselves, so close was the relationship." [Note: Robertson and Plummer, p. 116.]

Christians should be willing to give to one another rather than trying to get from one another. In other words, there should be no going to court with one another at all. Nevertheless if the Corinthians insisted on going to court, it should be a court of believers in the church, not unbelievers outside the church.