Exodus 4:10-12

Leeser(i) 10 And Moses said unto the Lord, Pardon, O Lord, I am not a man of words, neither yesterday, nor the day before, nor since thou hast spoken unto thy servant; for I am heavy of speech, and heavy of tongue. 11 And the Lord said unto him, Who hath given a mouth to man? or who maketh him dumb, or deaf, or seeing, or blind? is it not I the Lord? 12 Now therefore go, and I will be with thy mouth, and I will teach thee what thou shalt speak.