2 Corinthians 2:6
"Sufficient to such a man is this punishment, which was inflicted of many."
Cross References (ranked by relevance)
1 Timothy 5:20
Them that sin rebuke before all, that others also may fear.
2 Corinthians 7:11
For behold this selfsame thing, that ye sorrowed after a godly sort, what carefulness it wrought in you, yea, what clearing of yourselves, yea, what indignation, yea, what fear, yea, what vehement desire, yea, what zeal, yea, what revenge! In all things ye have approved yourselves to be clear in this matter.
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.