Jesus said, And if your brother sin against you, go, rebuke him between you and him alone: if he hears you, you have gained your brother (Matt. 18:15).
But if all are prophesying, and some unbeliever or uninformed person comes in, he is convicted by all and is judged by all. (1 Cor. 14:24)
Preach the Word; be prepared in season and out of season; correct, rebuke and encouragewith great patience and careful instruction. For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear. (2 Timothy 4:2-3)
But when John rebuked Herod the tetrarch because of Herodias, his brother's wife, and all the other evil things he had done, (Luke 3:19)
Take no part in the unfruitful works of darkness, but instead expose them. (Eph. 5:11)
are you not able to judge those within?