Proverbs 28:26 (BSB)

He who trusts in himself is a fool, but one who walks in wisdom will be safe.

From Proverbs 28. Also in the ESV.

Commentary on Proverbs 28:26

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Proverbs 28:26: Here is, 1. The character of a fool: He trusts to his own heart, to his own wisdom and counsels, his own strength and sufficiency, his own merit and righteousness, and the good opinion he has of himself; he that does so is a fool, for he trusts to that, not only which is deceitful above all things (Jer 17:9), but which has often deceived him.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Proverbs 28:26: He that trusteth in his own heart is a fool,.... Since the thoughts and imaginations of the thoughts of the heart are only evil, and that continually; they are vain and vague, sinful and corrupt; the affections are inordinate, the conscience defiled, the understanding darkened, and the will perverse; there is no good thing in it, nor any that comes out of it, but all...
• Jamieson-Fausset-Brown (Reformed), Commentary Critical and Explanatory on the Whole Bible on Proverbs 28:26: (Compare Pro 3:6-8). walketh wisely--that is, trusting in God (Pro 22:17-19).
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on Proverbs 28:26: Pro 28:26 The following proverb assumes the בטח of the foregoing: 26 He that trusteth in his own heart is a fool; But he that walketh in wisdom shall escape. From the promise in the second line, Hitzig concludes that a courageous heart is meant, but when by itself לב never bears this meaning.