Exodus 4:10-13

10And Moses said unto the Lord, O my Lord, I am not eloquent, neither heretofore, nor since thou hast spoken unto thy servant: but I am slow of speech, and of a slow tongue.12 11And the Lord said unto him, Who hath made man’s mouth? or who maketh the dumb, or deaf, or the seeing, or the blind? have not I the Lord? 12Now therefore go, and I will be with thy mouth, and teach thee what thou shalt say. 13And he said, O my Lord, send, I pray thee, by the hand of him whom thou wilt send.3