Cross reference
Exodus 4:10
10 And Moses saith unto Jehovah, `O, my Lord, I `am' not a man of words, either yesterday, or before, or since Thy speaking unto Thy servant, for I `am' slow of mouth, and slow of tongue.'
Exodus 6:12
12 and Moses speaketh before Jehovah, saying, `Lo, the sons of Israel have not hearkened unto me, and how doth Pharaoh hear me, and I of uncircumcised lips?'
Jeremiah 1:6
6 And I say, `Ah, Lord Jehovah! lo, I have not known -- to speak, for I `am' a youth.'
Acts 7:22
22 and Moses was taught in all wisdom of the Egyptians, and he was powerful in words and in works.
Exodus 4:1
1 And Moses answereth and saith, `And, if they do not give credence to me, nor hearken to my voice, and say, Jehovah hath not appeared unto thee?'
2 Corinthians 11:6
6 and even if unlearned in word -- yet not in knowledge, but in every thing we were made manifest in all things to you.
Job 12:2
2 Truly -- ye `are' the people, And with you doth wisdom die.
1 Corinthians 2:1-4
1 And I, having come unto you, brethren, came -- not in superiority of discourse or wisdom -- declaring to you the testimony of God,
2 for I decided not to know any thing among you, except Jesus Christ, and him crucified;
3 and I, in weakness, and in fear, and in much trembling, was with you;
4 and my word and my preaching was not in persuasive words of human wisdom, but in demonstration of the Spirit and of power --
2 Corinthians 10:10
10 `because the letters indeed -- saith one -- `are' weighty and strong, and the bodily presence weak, and the speech despicable.'