2 Corinthians 13:2 in the World English Bible
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,
Context
1 This is the third time I am coming to you. In the mouth of two or three witnesses shall every word be established.
2 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:
3 Since ye seek a proof of Christ speaking in me, which to you-ward is not weak, but is mighty in you.