1 Corinthians 2:4
And my discourse, and my preaching was not with the persuasive words of human wisdom, but in the demonstration of the Spirit and of power;
Romans 15:19
through the efficacy of signs and wonders, by the power of the Spirit of God; so that from Jerusalem, and round as far as to Illyricum, I have fully declared the gospel of Christ:
1 Corinthians 4:20
for the kingdom of God consisteth not in speech, but in power.
1 Corinthians 1:17
For Christ sent me not to baptize, but to preach the gospel: not in fine speech, least the cross of Christ should be made of no effect.
1 Corinthians 2:1
And I, when I came among you, brethren, came not with excellency of language, or of human wisdom, declaring unto you the testimony of God:
1 Corinthians 2:13
which we also speak of, not in words dictated by human wisdom, but in those which are dictated by the holy Spirit; explaining spiritual things by spiritual words.
1 Thessalonians 1:5
For our gospel came not to you in word only, but also in power, and in the holy Ghost, and in much certainty; as ye know what sort of persons we were among you for your sakes.
2 Peter 1:16
For we did not follow artfully devised fables, when we made known unto you the power and coming of our Lord Jesus Christ; but were eye-witnesses of his majesty.
John 16:8-15
And when He comes, He will convince the world of sin, and of righteousness, and of judgement:
Acts 20:27
For I have not failed to declare unto you all the counsel of God.
Acts 26:28
I know that thou believest them. Then Agrippa said unto Paul, Thou almost persuadest me to be a Christian.
Romans 16:18
and avoid them; for such people serve not our Lord Jesus Christ, but their own belly; and by a soothing address and good words deceive the hearts of the innocent.
Galatians 1:10
For do I now persuade you to obey men or God? Or do I seek to please men? if I yet pleased men, I should not be the servant of Christ.
Colossians 2:4
And this I say, least any one should deceive you with fine speeches.
1 Peter 1:12
to whom it was revealed, that it was not to themselves, but to us they ministered these things, which are now declared unto you by them that have preached the gospel unto you, through the holy Spirit sent down from heaven; which things the angels desire to look into.
2 Peter 2:18
For when they speak swelling words of vanity, they ensnare in the lusts of the flesh, through their lasciviousness, those who had indeed withdrawn from such as deal in error;