1 Corinthians 2:4

and my message and my preaching were not in persuasive words of wisdom, but in demonstration of the Spirit and of power,

Romans 15:19

in the power of signs and wonders, in the power of the Spirit; so that from Jerusalem and round about as far as Illyricum I have fully preached the gospel of Christ.

1 Corinthians 4:20

For the kingdom of God does not consist in words but in power.

1 Corinthians 1:17

For Christ did not send me to baptize, but to preach the gospel, not in cleverness of speech, so that the cross of Christ would not be made void.

1 Corinthians 2:1

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.

1 Corinthians 2:13

which things we also speak, not in words taught by human wisdom, but in those taught by the Spirit, combining spiritual thoughts with spiritual words.

1 Thessalonians 1:5

for our gospel did not come to you in word only, but also in power and in the Holy Spirit and with full conviction; just as you know what kind of men we proved to be among you for your sake.

2 Peter 1:16

For we did not follow cleverly devised tales when we made known to you the power and coming of our Lord Jesus Christ, but we were eyewitnesses of His majesty.

Judges 14:15

Then it came about on the fourth day that they said to Samson’s wife, “Entice your husband, so that he will tell us the riddle, or we will burn you and your father’s house with fire. Have you invited us to impoverish us? Is this not so?”

Judges 16:5

The lords of the Philistines came up to her and said to her, “Entice him, and see where his great strength lies and how we may overpower him that we may bind him to afflict him. Then we will each give you eleven hundred pieces of silver.”

2 Samuel 14:17-20

Then your maidservant said, ‘Please let the word of my lord the king be comforting, for as the angel of God, so is my lord the king to discern good and evil. And may the Lord your God be with you.’”

2 Samuel 15:2-6

Absalom used to rise early and stand beside the way to the gate; and when any man had a suit to come to the king for judgment, Absalom would call to him and say, “From what city are you?” And he would say, “Your servant is from one of the tribes of Israel.”

1 Kings 22:13-14

Then the messenger who went to summon Micaiah spoke to him saying, “Behold now, the words of the prophets are uniformly favorable to the king. Please let your word be like the word of one of them, and speak favorably.”

2 Chronicles 18:19-21

The Lord said, ‘Who will entice Ahab king of Israel to go up and fall at Ramoth-gilead?’ And one said this while another said that.

Proverbs 7:21

With her many persuasions she entices him;
With her flattering lips she seduces him.

Proverbs 20:19

He who goes about as a slanderer reveals secrets,
Therefore do not associate with a gossip.

Jeremiah 20:10

For I have heard the whispering of many,
Terror on every side!
Denounce him; yes, let us denounce him!”
All my trusted friends,
Watching for my fall, say:
“Perhaps he will be deceived, so that we may prevail against him
And take our revenge on him.”

Ezekiel 13:6

They see falsehood and lying divination who are saying, ‘The Lord declares,’ when the Lord has not sent them; yet they hope for the fulfillment of their word.

Ezekiel 13:10-11

It is definitely because they have misled My people by saying, ‘Peace!’ when there is no peace. And when anyone builds a wall, behold, they plaster it over with whitewash;

John 16:8-15

And He, when He comes, will convict the world concerning sin and righteousness and judgment;

Acts 20:27

For I did not shrink from declaring to you the whole purpose of God.

Acts 26:28

Agrippa replied to Paul, “In a short time you will persuade me to become a Christian.”

Romans 16:18

For such men are slaves, not of our Lord Christ but of their own appetites; and by their smooth and flattering speech they deceive the hearts of the unsuspecting.

Galatians 1:10

For am I now seeking the favor of men, or of God? Or am I striving to please men? If I were still trying to please men, I would not be a bond-servant of Christ.

Colossians 2:4

I say this so that no one will delude you with persuasive argument.

1 Peter 1:12

It was revealed to them that they were not serving themselves, but you, in these things which now have been announced to you through those who preached the gospel to you by the Holy Spirit sent from heaven—things into which angels long to look.

2 Peter 2:18

For speaking out arrogant words of vanity they entice by fleshly desires, by sensuality, those who barely escape from the ones who live 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 did not shrink from declaring to you the whole purpose of God.

General references

Luke 4:32
and they were amazed at His teaching, for His message was with authority.
1 Corinthians 4:20
For the kingdom of God does not consist in words but in power.