Proverbs 29:1 (BSB)

A man who remains stiff-necked after much reproof will suddenly be shattered beyond recovery.

From Proverbs 29. Also in the ESV.

Commentary on Proverbs 29:1

• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on Proverbs 29:1: Pro 29:1 A general ethical proverb here follows: A man often corrected who hardeneth his neck, Shall suddenly go to ruin without remedy. Line second = Pro 6:15. The connection אישׁ תּוכחות must make the nearest impression on a reader of the Book of Proverbs that they mean a censurer (reprehender), but which is set aside by what follows, for the genit.