Cross reference
Exodus 4:10
10 And Moses said unto Jehovah, Oh, Lord, I am not eloquent, neither heretofore, nor since thou hast spoken unto thy servant; for I am slow of speech, and of a slow tongue.
Exodus 6:12
12 And Moses spake before Jehovah, saying, Behold, the children of Israel have not hearkened unto me; how then shall Pharaoh hear me, who am of uncircumcised lips?
Jeremiah 1:6
6 Then said I, Ah, Lord Jehovah! behold, I know not how to speak; for I am a child.
Acts 7:22
22 And Moses was instructed in all the wisdom of the Egyptians; and he was mighty in his words and works.
Exodus 4:1
1 And Moses answered and said, But, behold, they will not believe me, nor hearken unto my voice; for they will say, Jehovah hath not appeared unto thee.
2 Corinthians 11:6
6 But though `I be' rude in speech, yet `am I' not in knowledge; nay, in every way have we made `this' manifest unto you in all things.
Job 12:2
2 No doubt but ye are the people, And wisdom shall die with you.
1 Corinthians 2:1-4
1 And I, brethren, when I came unto you, came not with excellency of speech or of wisdom, proclaiming to you the testimony of God.
2 For I determined not to know anything among you, save Jesus Christ, and him crucified.
3 And I was with you in weakness, and in fear, and in much trembling.
4 And my speech and my preaching were not in persuasive words of wisdom, but in demonstration of the Spirit and of power:
2 Corinthians 10:10
10 For, His letters, they say, are weighty and strong; but his bodily presence is weak, and his speech of no account.