Exodus 4:30

4:30 Aaron spoke all the words that the Lord had spoken to Moses and did the signs in the sight of the people,

Exodus 20:22

The Altar

20:22 The Lord said to Moses: “Thus you will tell the Israelites: ‘You yourselves have seen that I have spoken with you from heaven.

Exodus 34:32

34:32 After this all the Israelites approached, and he commanded them all that the Lord had spoken to him on Mount Sinai.