Exodus 4:10
And Moses said unto Yahweh - Pardon, O My Lord! not a man of words, am I, neither heretofore, nor since thou hast spoken unto thy servant, - for heavy of mouth and heavy of tongue, I am.
Exodus 6:12
And Moses spake before Yahweh, saying, - Lo! the sons of Israel have not hearkened unto me, how then shall Pharaoh, hear, I, also being of uncircumcised lips.
Jeremiah 1:6
Then said I - Ah! My Lord Yahweh! Lo! I know not how to speak, - For a child, am I!
Exodus 4:1
Then responded Moses, and said, And lo! they will not believe me, neither hearken to my voice, - for they will say, Yahweh, hath not appeared unto thee.
Acts 7:22
And, so Moses was trained in all the wisdom of the Egyptians, and was mighty in his words and works.
Job 12:2
Of a truth, ye, are the people, and, with you, wisdom, will die.
1 Corinthians 2:1-4
I, therefore, brethren, when I came unto you, came, not with excellency of discourse or wisdom, declaring unto you the mystery of God;
2 Corinthians 10:10
Because, The letters, it is true (saith one), are weighty and strong, but, the presence of the body, is weak, and, the discourse, contemptible; -
2 Corinthians 11:6
And, even if uncultured in my discourse, certainly not in my knowledge, - but, in every way, having made it manifest, in all things, unto you.