Exodus 4:15 YLT

¹³  and he saith, 'O, my Lord, send, I pray thee, by the hand Thou dost send.'

¹⁴  And the anger of Jehovah burneth against Moses, and He saith, 'Is not Aaron the Levite thy brother? I have known that he speaketh well, and also, lo, he is coming out to meet thee; when he hath seen thee, then he hath rejoiced in his heart,

¹⁵  and thou hast spoken unto him, and hast set the words in his mouth, and I -- I am with thy mouth, and with his mouth, and have directed you that which ye do;

¹⁶  and he, he hath spoken for thee unto the people, and it hath come to pass, he -- he is to thee for a mouth, and thou -- thou art to him for God;

¹⁷  and this rod thou dost take in thy hand, with which thou doest the signs.'