“While Peter was still speaking these words, the Holy Spirit fell upon all those who were listening to the message” (Acts 10:44).
Many a preacher (myself included), and many more of those who are forced to listen to them every week from the pews, wish the Holy Spirit would interrupt sermons far more frequently. I suspect people would be a lot more excited to come to church if they came to the service knowing God, and not the preacher, is the speaker!
“And when I came to you, brethren, I did not come with superiority of speech or of wisdom, proclaiming to you the testimony of God. For I determined to know nothing among you except Jesus Christ, and Him crucified. I was with you in weakness and in fear and in much trembling, and my message and my preaching were not in persuasive words of wisdom, but in demonstration of the Spirit and of power, so that your faith would not rest on the wisdom of men, but on the power of God” (1 Cor 2:1-5).