You are the original messengers
Exodus 7:1: “So the Lord said to Moses: “See, I have made you as God to Pharaoh, and Aaron your brother shall be your prophet.””
In the account of the Ten Plagues, both Pharaoh’s servants, as well as the Egyptian people, recognized that Moses was the servant of the only true G-d, the G-d of Israel.
Moses showed confidence and absolute trust in G-d, and he allowed G-d to direct every one of his and Aaron’s steps.
Moses came across with G-d’s authority, and he did not let Pharaoh’s heard-heartedness sway him.
Moses was a bold, unflinching ambassador for G-d even at the possible cost of his life.