Solomon
Proverbs 26:16KJV·traditional attribution

The sluggard is wiser in his own conceit than seven men that can render a reason.

Matthew Henry Presbyterian

Observe, 1. The high opinion which the sluggard has of himself, notwithstanding the gross absurdity and folly of his slothfulness: He thinks himself wiser than seven men, than seven wise men, for they are such as can render a reason.

John Gill Reformed Baptist

The sluggard is wiser in his own conceit,.... It is a sort of a solecism, a kind of a contradiction in terms for a sluggard to be wise, who is so slothful as to make no use of the means of getting wisdom and knowledge.

Jamieson-Fausset-Brown Reformed

The thoughtless being ignorant of their ignorance are conceited.