1 Corinthians 6:1
Dare any of you, having a matter against another, go to law before the unjust, and not before the saints?
The apostle brings to light another apparent problem; they were taking each other to court. The context regards some who have a matter against another. Paul doesn’t say what that matter is except a few verses later (vs. 7) he mentions that some were defrauded.
I have a pastor friend who has developed a case for us to consider that when the word saints is used in Paul’s letters, he is referring to the believing Jews in the first century. Therefore, the church in 1st Corinthians was made up primarily of Jewish believers, not Gentiles. He may be correct.
Jews would most likely never have taken a dispute before a Roman court of law. Gentiles would have done so without a second thought. This is why Paul is so stunned by their boldness, Dare any of you is literally are you so bold to go before the unjust when you should go before the saints and deal with the matter internally.