Exodus 4:10
And Moses said to LORD, Oh, LORD, I am not eloquent, neither heretofore, nor since thou have spoken to thy servant, for I am slow of speech, and of a slow tongue.
Exodus 6:12
And Moses spoke before LORD, saying, Behold, the sons of Israel have not hearkened to me, how then shall Pharaoh hear me, who am of uncircumcised lips?
Jeremiah 1:6
Then I said, Ah, lord LORD! Behold, I know not how to speak, for I am a child.
Exodus 4:1
And Moses answered and said, But, behold, they will not believe me, nor hearken to my voice, for they will say, LORD has not appeared to thee.
Acts 7:22
And Moses was reared in all the wisdom of the Egyptians, and he was mighty in his words and deeds.
Job 12:2
No doubt but ye are the people, and wisdom shall die with you.
1 Corinthians 2:1-4
And I, brothers, when I came to you, came not in eminence of speech or of wisdom proclaiming the testimony of God to you.
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 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.