“And Aaron spake all the words which the LORD had spoken unto Moses, and did the signs in the sight of the people.”
Bible verses related to Exodus 4:30 (similar cross-references)
Exodus 4:16 - And he shall be thy spokesman unto the people: and he shall be, even he shall be to thee instead of a mouth, and thou shalt be to him instead of God. (Verses like Exodus 4:16)