Jesus came dividing those that were his and those that weren’t, you are or you aren’t, you’re in favor or you’re against. And there is no place in the world at this time of the end or in Church for the neutral or mild, and there is no union of good against evil, as Paul speaks in 2º Cor. 6:
14- (...) what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
15- And what concord hath Christ with Belial? or what part hath he that believeth with an infidel?
16- And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in [them]; and I will be their God, and they shall be my people.
And Paul still speaks in: 1st. Co. 5 that it wasn’t to associate (have communion, or eat with them) with the impure that called themselves brothers and John goes beyond in his 2nd. Letter whoever doesn’t remain or go beyond Christ’s doctrine, couldn’t

receive at home, or even weLukeome (greet), so he doesn’t turn accomplice of their bad works.
Some people say we can’t judge, I agree in part, if He isn’t one of those Christians that are in sin and don’t want anyone in their lives. Or is one of those that don’t have a Church and speak bad of all of them and of everyone, or the ones that only defend their church and speak badly about the other’s (These have no authority), as Jesus said, before judging others, we have to look at our own mistakes. Matt. 7:
5- Thou hypocrite, first cast out the beam out of thine own eye; and then shalt thou see clearly to cast out the mote out of thy brother's eye.
(That’s where we get the authority to judge).
Esteban gave us the example, even him being one of the 7 and simple deacons: died stoned, for condemning these powerful Pharisees in the temple
The Bible says not only to judge, but to condemn and expel the evildoers of the church.