1 Corinthians 2:1-6

When I came to you, my brothers and sisters, to preach God's secret truth, I did not use big words and great learning. For while I was with you, I made up my mind to forget everything except Jesus Christ and especially his death on the cross. So when I came to you, I was weak and trembled all over with fear, and my teaching and message were not delivered with skilful words of human wisdom, but with convincing proof of the power of God's Spirit. Your faith, then, does not rest on human wisdom but on God's power. Yet I do proclaim a message of wisdom to those who are spiritually mature. But it is not the wisdom that belongs to this world or to the powers that rule this world — powers that are losing their power.