2 Corinthians 13:1-3; 2 Corinthians 13:10

1 Behold, this is the third time I am coming to you: In the mouth of two or three witnesses shall every word stand.

2 I have told before and foretell, as present and now absent, to them that sinned before and to all the rest, that if I come again, I will not spare.

3 Do you seek a proof of Christ that speaketh in me, who towards you is not weak, but is mighty in you?

10 Therefore I write these things, being absent, that, being present, I may not deal more severely, according to the power which the Lord hath given me unto edification and not unto destruction.