Matthew 26:75
And Peter remembered the word of Jesus having spoken to him, That before the cock shall crow, thou wilt deny me thrice. And having gone out, he wept bitterly.
2 Corinthians 2:7
so on the contrary you should rather forgive and comfort him, lest perhaps such a one may be swallowed up with excessive grief.
Galatians 6:1
Brethren, if indeed a man may be overtaken in some transgression, you who are spiritual, perfect such an one in the spirit of meekness; watching yourself, lest you may also be tempted.
1 Peter 4:2-3
that he may no longer live the remaining time in carnality according to the lusts of men, but in the will of God.