Exodus 4:10
Then Moses said unto the LORD, O my Lord, I am not eloquent, neither up until now, nor since thou hast spoken unto thy slave; but I am slow of speech and of a slow tongue.
Exodus 6:12
And Moses answered before the LORD, saying, Behold, the sons of Israel do not hearken unto me; how then shall Pharaoh hear me, seeing I am of uncircumcised lips?
Jeremiah 1:6
Then I said, Ah, Lord GOD! behold, I do not know how to speak: for I am a child.
Exodus 4:1
Then Moses answered and said, But, behold, they will not believe me, nor hearken unto my voice, for they will say, The LORD has not appeared unto thee.
Acts 7:22
And Moses was taught in all the wisdom of the Egyptians and 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 with puffed up speech or wisdom to declare unto you the testimony of God.
2 Corinthians 10:10
For his letters, they say, are weighty and powerful; but his bodily presence is weak, and his speech contemptible.
2 Corinthians 11:6
But though I am rude in speech, yet not in knowledge, but we have been thoroughly made manifest among you in all things.