Moses said he was not eloquent and asked to be excused from speaking. God responded by providing Aaron the Levite as a spokesman, saying Aaron would speak to the people for Moses. The passage frames Aaron’s role as an answer to Moses’ objection about speech (Exodus 4:10-16).
In Exodus 4:10–17, Moses resists his commission by pointing to his lack of speaking ability and then by asking God to send someone else. Yahweh answers by asserting control over human speech and disability, then promises to be with Moses’ mouth and teach him what to say. When Moses persists, Yahweh becomes angry but provides Aaron as Moses’ spokesman. This passage sits inside the burning bush call narrative (Exodus 3–4), where Moses is commissioned to confront Pharaoh and lead Israel out of Egypt.
The passage presents a clear clash between Moses’ reluctance and Yahweh’s insistence. Moses says he is “not eloquent” and “slow of speech and tongue” (verse 10). Yahweh answers by claiming full authority over human speech and human limitations: the one who made the mouth also governs whether a person is mute, deaf, seeing, or blind (verse 11).
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Exodus 4:10-16, then read the surrounding section so the answer stays connected to the passage's flow.
10Moses said to Yahweh, "Oh, Lord, I am not eloquent, neither before now, nor since you have spoken to your servant; for I am slow of speech, and of a slow tongue."
11Yahweh said to him, "Who made man`s mouth? Or who makes one mute, or deaf, or seeing, or blind? Isn`t it I, Yahweh?
12Now therefore go, and I will be with your mouth, and teach you what you shall speak."
13He said, "Oh, Lord, please send someone else."
14The anger of Yahweh was kindled against Moses, and he said, "What about Aaron, your brother, the Levite? I know that he can speak well. Also, behold, he comes forth to meet you. When he sees you, he will be glad in his heart.
15You shall speak to him, and put the words in his mouth. I will be with your mouth, and with his mouth, and will teach you what you shall do.
16He will be your spokesman to the people; and it will happen, that he will be to you a mouth, and you will be to him as God.