Discern but dont judge
Discern but dont judge
Judging, or rebuking a false brother, can cause you personal problem. He might get offended and try to hurt you in some why. As happened to John the Baptist in Matthew 14.
 But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.  But he that is spiritual judgeth all things, yet he himself is judged of no man. (I Corinthians 2:14-15 [KJV])
The spiritual man can discern everything but he doesnt need to tell it to others so they can not discern him.
The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit. — KJV, John 3:8
The carnal man doesn't understand the spiritual man, but the spiritual man understands everything.
The spiritual man also understands the spiritual book the Inspired Bibles while the carnal man wrest scripture to his own destruction.
As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction. (II Peter 3:16 [KJV])
But we should not judge. Rather walk away. Leave the church leave Mystery Babylon.
 Judge not, that ye be not judged.  For with what judgment ye judge, ye shall be judged: and with what measure ye mete, it shall be measured to you again.  And why beholdest thou the mote that is in thy brother’s eye, but considerest not the beam that is in thine own eye?  Or how wilt thou say to thy brother, Let me pull out the mote out of thine eye; and, behold, a beam is in thine own eye?  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. (Matthew 7:1-5 [KJV])
The temple of God is the body so if you are born again and they are against you you can make their church the abomination of desolation by leaving them.
 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)  Then let them which be in Judaea flee into the mountains: (Matthew 24:15-16 [KJV])
Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you. (Luke 17:21 [KJV])
Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you? (I Corinthians 3:16 [KJV])
Where is the church that you can build unto God anyway?
 Thus saith the LORD, The heaven is my throne, and the earth is my footstool: where is the house that ye build unto me? and where is the place of my rest?  For all those things hath mine hand made, and all those things have been, saith the LORD: but to this man will I look, even to him that is poor and of a contrite spirit, and trembleth at my word. (Isaiah 66:1-2 [KJV])