Because the foolishness of God is wiser than men; and the weakness of God is stronger than men.
All Commentaries on 1 Corinthians 1:25 Go To 1 Corinthians 1
Ambrosiaster
AD 400
When Paul speaks of the “foolishness of God,” he is not implying that God is foolish. Rather he is saying that since God’s way of reasoning is in accord with things of the spirit, it confounds the reasoning of this world. It is wiser than human reasoning, because spiritual things are wiser than carnal ones. Spiritual things do not exist through carnal ones, but the other way around. Therefore carnal things are understandable in relation to spiritual ones. Similarly, what belongs to heaven is stronger than what belongs to earth. So what seems like the weakness of God is not really weak at all. Christ appeared to be defeated when he was killed, but he emerged as the victor and turned the reproof back on his persecutors. Commentary on Paul’s Epistles.