"Pharaoh will ask you to prove your power. He will ask you to do a miracle. Tell Aaron to throw his walking stick on the ground. While Pharaoh is watching, the stick will become a snake."
So Moses and Aaron went to Pharaoh and obeyed the Lord. Aaron threw his walking stick down. While Pharaoh and his officers watched, the stick became a snake.
Tell him this: 'The Lord, the God of the Hebrews, sent me to you. He told me to tell you to let his people go worship him in the desert. Until now you have not listened to the Lord.
So the Lord says that he will do something to show you that he is the Lord. I will hit the water of the Nile River with this walking stick in my hand, and the river will change into blood.
The Lord said to Moses, "Tell Aaron to hold the walking stick in his hand over the rivers, canals, lakes, and every place where they store water. When he does this, all the water will change into blood. All of the water, even the water stored in wood and stone jars, will change into blood."
So Moses and Aaron did what the Lord commanded. Aaron raised the walking stick and hit the water in the Nile River. He did this in front of Pharaoh and his officials. So all the water in the river changed into blood.