Exodus 4:10
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
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
And I say, 'Ah, Lord Jehovah! lo, I have not known -- to speak, for I am a youth.'
Exodus 4:1
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?'
Acts 7:22
and Moses was taught in all wisdom of the Egyptians, and he was powerful in words and in works.
Job 12:2
Truly -- ye are the people, And with you doth wisdom die.
1 Corinthians 2:1-4
And I, having come unto you, brethren, came -- not in superiority of discourse or wisdom -- declaring to you the testimony of God,
2 Corinthians 10:10
because the letters indeed -- saith one -- are weighty and strong, and the bodily presence weak, and the speech despicable.'
2 Corinthians 11:6
and even if unlearned in word -- yet not in knowledge, but in every thing we were made manifest in all things to you.