Exodus 4:30

30 And Aaron spake all the words, which the Lord had said to Moses, and he did the signs before the people (and then Moses did all the miracles before the people);

Exodus 4:30 Meaning and Commentary

Exodus 4:30

And Aaron spake all the words which the Lord had spoken unto
Moses
As Moses had related to him, being his mouth and spokesman:

and did the signs in the sight of the people;
not Aaron, but Moses, and these were the turning of his rod into a serpent, and the serpent into a rod again; putting his hand into and out of his bosom, when it was leprous, and then doing the same when it was well again; and taking water out of the river, and changing it into blood, which he did for the confirmation of his mission.

Exodus 4:30 In-Context

28 And Moses told to Aaron all the words of the Lord, for which he had sent Moses (that he had sent Moses to say); and he told (him about) the miracles, which the Lord had commanded (him to perform).

29 And they came together, and gathered all the elder men of the sons of Israel. (And they came, and gathered together all the elders of the Israelites.)

30 And Aaron spake all the words, which the Lord had said to Moses, and he did the signs before the people (and then Moses did all the miracles before the people);

31 and the people believed; and they heard, that the Lord had visited the sons of Israel, and that he had beheld the torment of them; and they worshipped low(ly), or meekly, the Lord. (and the people believed; and when they had heard, that the Lord had visited the Israelites, and that he had seen their torment, they lowly, or meekly, worshipped the Lord.)