2 Corinthians 11:6

But even if I am unskilled in speech, yet not in knowledge, but in everything made known in all things to you.

1 Corinthians 1:17

For Christ sent me not to immerse, but to preach the good-news, not in wisdom of speech lest the cross of Christ would be emptied.

Ephesians 3:4

With which reading ye can recognize my understanding in the mystery of the Christ,

2 Corinthians 4:2

But we have renounced the covert things of shame, not walking in craftiness, nor misrepresenting the word of God, but by the disclosure of the truth, commending ourselves to every conscience of men before God.

2 Corinthians 5:11

Having seen therefore the terror of the Lord, we persuade men. But we have been manifested to God, and I hope also to have been manifested in your consciences.

2 Corinthians 12:12

Indeed the signs of the apostle were performed among you in all perseverance, in signs and wonders and mighty works.

1 Corinthians 1:21

For since in the wisdom of God the world did not know God through its wisdom, it pleased God through the foolishness of preaching to save those who believe.

1 Corinthians 2:1-3

And I, brothers, when I came to you, came not in eminence of speech or of wisdom proclaiming the testimony of God to you.

1 Corinthians 2:13

Which things also we speak, not in things learned from mankind, in words of wisdom, but in things learned from Spirit, comparing spiritual things with spiritual things.

2 Corinthians 7:2

Make room for us. We wronged no man, we corrupted no man, we exploited no man.

2 Corinthians 10:10

Because, The letters, he says, are indeed weighty and powerful, but his bodily presence is weak, and his speech is disdained.

2 Peter 3:15-16

And consider the longsuffering of our Lord, salvation, just as also our beloved brother Paul wrote to you according to the wisdom given to him,

Treasury of Scripture Knowledge

Summary

But though I be rude in speech, yet not in knowledge; but we have been throughly made manifest among you in all things.

General references

Bible References

Rude

2 Corinthians 10:10
Because, The letters, he says, are indeed weighty and powerful, but his bodily presence is weak, and his speech is disdained.
1 Corinthians 1:17
For Christ sent me not to immerse, but to preach the good-news, not in wisdom of speech lest the cross of Christ would be emptied.
1 Corinthians 2:1
And I, brothers, when I came to you, came not in eminence of speech or of wisdom proclaiming the testimony of God to you.

But we

2 Corinthians 4:2
But we have renounced the covert things of shame, not walking in craftiness, nor misrepresenting the word of God, but by the disclosure of the truth, commending ourselves to every conscience of men before God.
2 Corinthians 5:11
Having seen therefore the terror of the Lord, we persuade men. But we have been manifested to God, and I hope also to have been manifested in your consciences.
2 Corinthians 7:2
Make room for us. We wronged no man, we corrupted no man, we exploited no man.
2 Corinthians 12:12
Indeed the signs of the apostle were performed among you in all perseverance, in signs and wonders and mighty works.

General references

2 Corinthians 12:12
Indeed the signs of the apostle were performed among you in all perseverance, in signs and wonders and mighty works.