1 Corinthians 5:2

Your boasting is not good. Do you not know that a little leaven leavens the whole lump?

But those who are outside, God will judge. Remove the wicked man from among yourselves.

But if any has caused sorrow, he has caused sorrow not to me, but in some degree—in order not to say too much—to all of you.

So although I wrote to you, it was not for the sake of the offender nor for the sake of the one offended, but that your earnestness on our behalf might be manifested to you in the sight of God.

For I am afraid that perhaps when I come I may find you to be not what I wish and may be found by you to be not what you wish; that perhaps there will be strife, jealousy, outbursts of anger, selfish ambition, slanders, gossip, arrogance, disturbances.