1 Corinthians 2:1-5
Dear brothers, even when I first came to you I didn't use lofty words and brilliant ideas to tell you God's message. For I decided that I would speak only of Jesus Christ and his death on the cross. I came to you in weakness-- timid and trembling. And my preaching was very plain, not with a lot of oratory and human wisdom, but the Holy Spirit's power was in my words, proving to those who heard them that the message was from God. I did this because I wanted your faith to stand firmly upon God, not on man's great ideas.