2 Corinthians 13:1-3; 2 Corinthians 13:10
This is the third time I am coming to you. "At the mouth of two or three witnesses shall every word established."
I have said beforehand, and I do say beforehand, as when I was present the second time, so now, being absent, I write to those who have sinned before now, and to all the rest, that, if I come again, I will not spare;
seeing that you seek a proof of Christ that speaks in me; who toward you is not weak, but is powerful in you.
For this cause I write these things while absent, that I may not deal sharply when present, according to the authority which the Lord gave me for building up, and not for tearing down.