1 Corinthians 1:17, 21
1 Corinthians 1:17 ASV
For Christ sent me not to baptize, but to preach the gospel: not in wisdom of words, lest the cross of Christ should be made void.
1 Corinthians 1:21 ASV
For seeing that in the wisdom of God the world through its wisdom knew not God, it was God’s good pleasure through the foolishness of the preaching to save them that believe.