The message of Cross is the power of God

1 Corinthians 1:17  

For Christ did not send me to baptize, but to preach the gospel—not with words of human wisdom, lest the cross of Christ be emptied of its power.

1 Corinthians 2:13

This is what we speak, not in words taught us by human wisdom but in words taught by the Spirit, expressing spiritual truths in spiritual words.

1 Corinthians 2:1  

When I came to you, brothers, I did not come with eloquence or superior wisdom as I proclaimed to you the testimony about God.

2 Corinthians 10:10  

For some say, “His letters are weighty and forceful, but in person he is unimpressive and his speaking amounts to nothing.”

John 4:2  

Although in fact it was not Jesus who baptized, but his disciples.

2 Peter 1:16  

We did not follow cleverly invented stories when we told you about the power and coming of our Lord Jesus Christ, but we were eyewitnesses of his majesty.

Acts 10:48  

So he ordered that they be baptized in the name of Jesus Christ. Then they asked Peter to stay with them for a few days.

2 Corinthians 11:6  

I may not be a trained speaker, but I do have knowledge. We have made this perfectly clear to you in every way.

2 Corinthians 10:3-4  

3 For though we live in the world, we do not wage war as the world does.

4 The weapons we fight with are not the weapons of the world. On the contrary, they have divine power to demolish strongholds.

2 Corinthians 4:2  

Rather, we have renounced secret and shameful ways; we do not use deception, nor do we distort the word of God. On the contrary, by setting forth the truth plainly we commend ourselves to every man's conscience in the sight of God.

1 Corinthians 2:4-5  

4 My message and my preaching were not with wise and persuasive words, but with a demonstration of the Spirit's power,

5 so that your faith might not rest on men's wisdom, but on God's power.

Acts 26:17-18

17 I will rescue you from your own people and from the Gentiles. I am sending you to them

18  to open their eyes and turn them from darkness to light, and from the power of Satan to God, so that they may receive forgiveness of sins and a place among those who are sanctified by faith in me.’