Romans 1:22

“Professing themselves to be wise, etc..] The learned men among the Gentiles first called themselves sofoi, “Sophi”, wise men: and afterwards, to cover their wretched pride and vanity, filosofoi, “Philosophers”, lovers of wisdom; but notwithstanding all their arrogance, their large pretensions to wisdom, and boast of it they became fools; they appeared to be so; they showed themselves to be such in those very things they prided themselves with the knowledge of: as, for instance, Socrates, after he had asserted the unity of God, and is said to die a martyr for the truth; yet one of the last actions of his life was sacrificing a cock to Aesculapius, at least he desired his friend Crito to do…”

“Professing themselves--"boasting," or "pretending to be" wise, they became fools--"It is the invariable property of error in morals and religion, that men take credit to themselves for it and extol it as wisdom. So the heathen" (Co1 1:21) [THOLUCK].”

“Professing themselves to be wise - This was the common boast of the philosophers of antiquity. The very word by which they chose to be called, “philosophers,” means literally “lovers of wisdom.” That it was their boast that they were wise, is well known; compare Romans 1:14; 1 Corinthians 1:19, 1Co 1:20, 1 Corinthians 1:22; 1 Corinthians 3:19; 2 Corinthians 11:19. They became fools - Compare Jeremiah 8:8-9. They became really foolish in their opinions and conduct. There is something particularly pungent and cutting in this remark, and as true as it is pungent. In what way they evinced their folly, Paul proceeds immediately to state. Sinners of all kinds are frequently spoken of as fools in…”

“Rom 11:25; Pro 25:14, Pro 26:12; Isa 47:10; Jer 8:8, Jer 8:9, Jer 10:14; Mat 6:23; Co1 1:19-21, Co1 3:18, Co1 3:19 Romans 1:23”