I admit that I have been slightly frustrated with some Christians that do not properly understand Paul when he speaks in 1 Corinthians 5:9-13
I wrote to you in my letter not to associate with sexually immoral people—not at all meaning the sexually immoral of this world, or the greedy and swindlers, or idolaters, since then you would need to go out of the world. But now I am writing to you not to associate with anyone who bears the name of brother if he is guilty of sexual immorality or greed, or is an idolater, reviler, drunkard, or swindler—not even to eat with such a one. For what have I to do with judging outsiders?Is it not those inside the church whom you are to judge? God judges those outside. “Purge the evil person from among you.”
What almost everyone gets from this passage is that if you are correcting a brother or a sister in Christ, you are wrong, and being judgmental. And it is not just the person who you are correcting who will label you as such, but those around you that you look to verify your thoughts with.
However, that is exactly what Paul is telling us to be. We are to be judging of the believer who is caught in sin, but not the unbeliever who is living in their nature.
That’s it. I cannot explain better then what Paul has said. Except to reiterate that we are to judge in love, not in a condescending way, but with Grace, because we have been shown grace more than anything! So if you judge, do so with grace, and judge the sin by warning the brother or sister (Matthew 18:15-17) and then follow through with what we are told to do if they do not listen to us.
Love to all–