Exodus 4:10
Moses said: O Jehovah I am not a man of words. I have never been so, and am not now, even after what you have said to your servant. Talking is hard for me, and I am slow of tongue.
Exodus 6:12
But Moses replied: I am not a powerful speaker. If the sons of Israel will not listen to me, why should the king of Egypt?
Jeremiah 1:6
I, Jeremiah, said: Lord Jehovah, I do not know how to speak. I am only a child!
Exodus 4:1
Moses responded: What if they will not believe me or listen to what I say? For they may say: 'Jehovah has not appeared to you.'
Acts 7:22
Moses was educated in all the wisdom of the Egyptians, and was mighty in words and in deeds.
Job 12:2
Doubtless you are the people, and wisdom will die with you!
1 Corinthians 2:1-4
Brothers, I did not come to you with superiority of speech or with human wisdom, declaring to you the testimony of God.
2 Corinthians 10:10
For, His letters, they say, are weighty and strong. But his bodily presence is weak and his speech of no account.
2 Corinthians 11:6
Though I am unskilled in speech, yet I am not in knowledge. We have in every way made this evident to you in all things.