1 Corinthians 2:4

2:4 My conversation and my preaching were not with persuasive words of wisdom, but with a demonstration of the Spirit and of power,

1 Corinthians 2:13

2:13 And we speak about these things, not with words taught us by human wisdom, but with those taught by the Spirit, explaining spiritual things to spiritual people.

1 Corinthians 1:17

1:17 For Christ did not send me to baptize, but to preach the gospel – and not with clever speech, so that the cross of Christ would not become useless.

Exodus 4:10

4:10 Then Moses said to the Lord, “O my Lord, I am not an eloquent man, neither in the past nor since you have spoken to your servant, for I am slow of speech and slow of tongue.”

Jeremiah 1:6-7

1:6 I answered, “Oh, Lord God, I really do not know how to speak well enough for that, for I am too young.” 1:7 The Lord said to me, “Do not say, ‘I am too young.’ But go to whomever I send you and say whatever I tell you.

Romans 16:18

16:18 For these are the kind who do not serve our Lord Christ, but their own appetites. By their smooth talk and flattery they deceive the minds of the naive.

Romans 16:2

16:2 so that you may welcome her in the Lord in a way worthy of the saints and provide her with whatever help she may need from you, for she has been a great help to many, including me.

Colossians 1:10

1:10 so that you may live worthily of the Lord and please him in all respects – bearing fruit in every good deed, growing in the knowledge of God,

Colossians 1:6

1:6 that has come to you. Just as in the entire world this gospel is bearing fruit and growing, so it has also been bearing fruit and growing among you from the first day you heard it and understood the grace of God in truth.