1 Corinthians 2:4

And in my preaching there were no honeyed words of wisdom, but I was dependent on the power of the Spirit to make it clear to you:

Romans 15:19

By signs and wonders, in the power of the Holy Spirit; so that from Jerusalem and round about as far as Illyricum I have given all the good news of Christ;

1 Corinthians 4:20

For the kingdom of God is not in word but in power.

1 Corinthians 1:17

For Christ sent me, not to give baptism, but to be a preacher of the good news: not with wise words, for fear that the cross of Christ might be made of no value.

1 Corinthians 2:1

And when I came to you, my brothers, I did not come with wise words of knowledge, putting before you the secret of God.

1 Corinthians 2:13

And these are the things which we say, not in the language of man's wisdom, but in words given to us by the Spirit, judging the things of the spirit by the help of the Spirit.

1 Thessalonians 1:5

Because our good news came to you, not in word only, but in power, and in the Holy Spirit, so that you were completely certain of it; even as you saw what our behaviour to you was like from our love to you.

2 Peter 1:16

For when we gave you news of the power and the coming of our Lord Jesus Christ, our teaching was not based on stories put together by art, but we were eye-witnesses of his glory.

Judges 14:15

So on the fourth day they said to Samson's wife, Get from your husband the answer to his question by some trick or other, or we will have you and your father's house burned with fire; did you get us here to take all we have?

Judges 16:5

And the chiefs of the Philistines came up to her, and said to her, Make use of your power over him and see what is the secret of his great strength, and how we may get the better of him, and put bands on him, so that we may make him feeble; and every one of us will give you eleven hundred shekels of silver.

2 Samuel 14:17-20

Then your servant said, May the word of my lord the king give me peace! for my lord the king is as the angel of God in his hearing of good and bad: and may the Lord your God be with you!

2 Samuel 15:2-6

And Absalom got up early, morning after morning, and took his place at the side of the public meeting-place: and when any man had a cause which had to come to the king to be judged, then Absalom, crying out to him, said, What is your town? and he would say, Your servant is of one of the tribes of Israel.

1 Kings 22:13-14

Now the servant who had gone to get Micaiah said to him, See now, all the prophets with one voice are saying good things to the king; so let your words be like theirs and say good things.

2 Chronicles 18:19-21

And the Lord said, How may Ahab, king of Israel, be tricked into going up to Ramoth-gilead to his death? And one said one thing and one another.

Proverbs 7:21

With her fair words she overcame him, forcing him with her smooth lips.

Proverbs 20:19

He who goes about talking of the business of others gives away secrets: so have nothing to do with him whose lips are open wide.

Jeremiah 20:10

For numbers of them say evil secretly in my hearing (there is fear on every side): they say, Come, let us give witness against him; all my nearest friends, who are watching for my fall, say, It may be that he will be taken by deceit, and we will get the better of him and give him punishment.

Ezekiel 13:6

They have seen visions without substance and made use of secret arts, who say, The Lord has said; and the Lord has not sent them: hoping that the word would have effect.

Ezekiel 13:10-11

Because, even because they have been guiding my people into error, saying, Peace; when there is no peace; and in the building of a division wall they put whitewash on it:

John 16:8-15

And he, when he comes, will make the world conscious of sin, and of righteousness, and of being judged:

Acts 20:27

For I have not kept back from you anything of the purpose of God.

Acts 26:28

And Agrippa said to Paul, A little more and you will be making me a Christian.

Romans 16:18

For such people are not servants of the Lord Christ, but of their stomachs; and by their smooth and well-said words the hearts of those who have no knowledge of evil are tricked.

Galatians 1:10

Am I now using arguments to men, or God? or is it my desire to give men pleasure? if I was still pleasing men, I would not be a servant of Christ.

Colossians 2:4

I say this so that you may not be turned away by any deceit of words.

1 Peter 1:12

And it was made clear to those prophets that they were God's servants not for themselves but for you, to give you word of the things which have now come to your ears from the preachers of the good news through the Holy Spirit sent down from heaven; things which even angels have a desire to see.

2 Peter 2:18

For with high-sounding false words, making use of the attraction of unclean desires of the flesh, they get into their power those newly made free from those who are living in error;

Treasury of Scripture Knowledge

Summary

And my speech and my preaching was not with enticing words of man's wisdom, but in demonstration of the Spirit and of power:

My speech

General references

Bible References

My speech

Acts 20:27
For I have not kept back from you anything of the purpose of God.

General references

Luke 4:32
And they were surprised at his teaching, for his word was with authority.
1 Corinthians 4:20
For the kingdom of God is not in word but in power.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain