First Corinthians 2:1-5
1 Now when I came to you, brothers, I did not come with any brilliance of oratory or wise argument to announce to you the mystery of God.
2 I was resolved that the only knowledge I would have while I was with you was knowledge of Jesus, and of him as the crucified Christ.
3 I came among you in weakness, in fear and great trembling
4 and what I spoke and proclaimed was not meant to convince by philosophical argument, but to demonstrate the convincing power of the Spirit,
5 so that your faith should depend not on human wisdom but on the power of God.