Proverbs 27:6
"Faithful are the wounds of a friend; but the kisses of an enemy are deceitful."
Cross References (ranked by relevance)
Psalm 141:5
23
Let the righteous smite me; it shall be a kindness: and let him reprove me; it shall be an excellent oil, which shall not break my head: for yet my prayer also shall be in their calamities.
Revelation 3:19
16
As many as I love, I rebuke and chasten: be zealous therefore, and repent.
Hebrews 12:10
For they verily for a few days chastened us after their own pleasure; but he for our profit, that we might be partakers of his holiness.
Proverbs 10:18
He that hideth hatred with lying lips, and he that uttereth a slander, is a fool.