2 Corinthians 10:11

Let such one think this, that such as we are in word by letters when we are absent, such will we be also in deed when we are present.

1 Corinthians 4:19-20

But I will come to you shortly, if the Lord will, and will know, not the speech of them who are puffed up, but the power.

For I fear, lest, when I come, I shall not find you such as I would, and that I shall be found by you such as ye would not: lest there be debates, envyings, wraths, strifes, backbitings, whisperings, swellings, tumults:

2 Corinthians 13:2-3

I told you before, and foretell you, as if I were present, the second time; and being absent now I write to them who heretofore have sinned, and to all others, that, if I come again, I will not spare;

2 Corinthians 13:10

Therefore I write these things being absent, lest being present I should use sharpness, according to the power which the Lord hath given me to edification, and not to destruction.