Exodus 4:28

28 Moses then told Aaron everything the LORD had commanded him to say. And he told him about the miraculous signs the LORD had commanded him to perform.

Exodus 4:28 Meaning and Commentary

Exodus 4:28

And Moses told Aaron all the words of the Lord, who had sent
him
He declared his mission and commission from God, and gave him the particulars of what was to be said both to the people of Israel and to the king of Egypt; and this he did, because Aaron was to be his spokesman unto them: and all the signs which he had commanded him;
to do, first before the children of Israel, and then before Pharaoh; before the one to obtain credit of them, as being sent of God, and before the other to get leave of him for the departure of Israel out of Egypt.

Exodus 4:28 In-Context

26 (When she said “a bridegroom of blood,” she was referring to the circumcision.) After that, the LORD left him alone.

27 Now the LORD had said to Aaron, “Go out into the wilderness to meet Moses.” So Aaron went and met Moses at the mountain of God, and he embraced him.

28 Moses then told Aaron everything the LORD had commanded him to say. And he told him about the miraculous signs the LORD had commanded him to perform.

29 Then Moses and Aaron returned to Egypt and called all the elders of Israel together.

30 Aaron told them everything the LORD had told Moses, and Moses performed the miraculous signs as they watched.