- God hardened Pharaoh’s heart. Then he sent Moses to confront Pharaoh for not listening to him.
- The turning of the waters into blood was meant to show Pharaoh that God was who he claimed to be. (v 17)
- God told Pharaoh that Moses (or he) would stretch out his staff over the Nile so that the waters would turn to blood but it was Aaron who was instructed to and actually did it.
- When god tells you to do something, do it or he will bring his threatened punishment upon you.