Exodus 6:11

6:11 “Go, tell Pharaoh king of Egypt that he must release the Israelites from his land.”

Exodus 6:30

6:30 But Moses said before the Lord, “Since I speak with difficulty, why should Pharaoh listen to me?”

Exodus 19:7

19:7 So Moses came and summoned the elders of Israel. He set before them all these words that the Lord had commanded him,