Matt 7:2; say the way we judge others, is the way we will be judged. That isn't exactly the same thing, as not judging.
He who believes isn't judged by the Father, but He who doesn't believe is already judged by the Father... John 3:18;
The Father judges those OUTSIDE the church.
It is OK, for us to judge, as long as our judgement is righteous. John 7:24;
1 Cor 6:3; says we will judge angels.. it goes on to say.. "How much more in this life".
In 1 Cor 5; a man is having a sexual affair with his father's wife. We don't know if the Father remarried, or had multiple wives,
but the woman in question, does not appear to be his mother. Paul condemns them for not judging him and removing him
from the church. ( 1 Cor 5:2-3; ) Paul even says he has already judged him.
In verse 12, Paul asks them... do you not those who are in the church?
In the next verse Paul says... God judges those who are outside the church. We are to remove the wicked from amongst us.
Many churches are embracing homosexuality, even fornication..... are these better sins than the man in 1 Cor 5?
Matt 18:15; "If your brother sins, go and show him his fault in private; if he listens to you, you have won your brother.
Matt 18:16; "But if he does not listen to you, take one or two more with you, so that BY THE MOUTH OF TWO OR THREE WITNESSES EVERY FACT MAY BE CONFIRMED.
Matt 18:17; "If he refuses to listen to them, tell it to the church; and if he refuses to listen even to the church, let him be to you as a Gentile and a tax collector.
We are to confront those sinning in the church. If they stop... great!!!... if they don't.... treat them like an unsaved person.
We judge those in the church. God judges those who are outside.
If we don't warn those who are sinning, their blood will be on our hands. ( Ezek 3:18-21; )