For since in the wisdom of God the world by wisdom knew not God, it pleased God by the foolishness of preaching to save them that believe.
All Commentaries on 1 Corinthians 1:21 Go To 1 Corinthians 1
Ambrosiaster
AD 400
The world has not recognized God but has attributed divine majesty to his creatures and to the elemental powers of the universe, thinking that visible things ought to be worshiped. God has therefore chosen a form of preaching which will seem foolish to such people. Those who reject what the apostles preach will be condemned, while believers are being saved. Commentary on Paul’s Epistles.