1 Corinthians 2:3-6

Haweis(i) 3 And in weakness, and in fear, and in much timidity, was I among you. 4 And my conversation and my preaching was not with persuasive words of human wisdom, but with demonstration of the Spirit, and of power: 5 that your faith might not stand on the wisdom of men, but on the power of God. 6 But we speak wisdom among the perfect: yet not the wisdom of this world, nor of the rulers of this world, who are destroying themselves: