10Moses said to the LORD, “Pardon your servant, Lord. I have never been eloquent, neither in the past nor since you have spoken to your servant. I am slow of speech and tongue.”

11The LORD said to him, “Who gave human beings their mouths? Who makes them deaf or mute? Who gives them sight or makes them blind? Is it not I, the LORD?

12Now go; I will help you speak and will teach you what to say.”

13But Moses said, “Pardon your servant, Lord. Please send someone else.”

14Then the LORD’s anger burned against Moses and he said, “What about your brother, Aaron the Levite? I know he can speak well. He is already on his way to meet you, and his heart will be glad when he sees you.

15You shall speak to him and put words in his mouth; I will help both of you speak and will teach you what to do.

16He will speak to the people for you, and it will be as if he were your mouth and as if you were God to him.

17But take this staff in your hand so you can perform the signs with it.”

24. "Go to Fir'aun (Pharaoh)! Verily, he has transgressed (all bounds in disbelief and disobedience, and has behaved as an arrogant, and as a tyrant)."

25. [Mûsa (Moses)] said: "O my Lord! Open for me my chest (grant me self-confidence, contentment, and boldness).

26. "And ease my task for me;

27. "And make loose the knot (the defect) from my tongue, (i.e. remove the incorrectness from my speech) [That occurred as a result of a brand of fire which Mûsa (Moses) put in his mouth when he was an infant]. [Tafsir At-Tabarî, Vol. 16, Page 159].

28. "That they understand my speech,

29. "And appoint for me a helper from my family,

30. "Hârûn (Aaron), my brother;

31. "Increase my strength with him,

32. "And let him share my task (of conveying Allâh's Message and Prophethood),

33. "That we may glorify You much,

34. "And remember You much,

35. "Verily! You are of us Ever a Well-Seer."

36. Allâh said: "You are granted your request, O Mûsa (Moses)!