1 Corinthians 2: 1 - 5
1 When I came to you, brethren, I did not come proclaiming to you the testimony of God in lofty words or wisdom.
2 For I decided to know nothing among you except Jesus Christ and him crucified.
3 And I was with you in weakness and in much fear and trembling;
4 and my speech and my message were not in plausible words of wisdom, but in demonstration of the Spirit and of power,
5 that your faith might not rest in the wisdom of men but in the power of God.

EWTN