1 Corinthians 2:4
Amplified Bible (AMP)
And my language and my message were not set forth in persuasive (enticing and plausible) words of wisdom, but they were in demonstration of the [Holy] Spirit and power [ a proof by the Spirit and power of God, operating on me and stirring in the minds of my hearers the most holy emotions and thus persuading them],— 1 Corinthians 2:4 (AMP)