2 Corinthians 13:2 in the King James Version
I told you before, and foretell you, as if I were present, the second time; and being absent now I write to them which heretofore have sinned, and to all other, that, if I come again, I will not spare:
Context
1 This is the third time I am coming to you. “At the mouth of two or three witnesses shall every word be established.”
2 I have warned previously, and I warn again, 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,
3 seeing that you seek a proof of Christ who speaks in me who is not weak, but is powerful in you.