2Cor 2.1-4 But I determined this with myself, that I would not come again to you in heaviness.
2Cor 13.2 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:
1Cor 5.1 It is reported commonly that there is fornication among you, and such fornication as is not so much as named among the Gentiles, that one should have his father's wife.