Thus saith the LORD, In this thou shalt know that I am the LORD: behold, I will smite with the rod that is in mine hand upon the waters which are in the river, and they shall be turned to blood. Exodus 7:17

Now God is going to reveal to Pharaoh and all of Egypt that He is the true living God by signs and wonders. He is going to unveil plagues upon Egypt, now these plagues are not just random acts of wrath. These plagues will specifically challenge the false Egyptian gods and prove that they are all false and powerless against Yahweh

Water, as we know is a main source of life. So when the water supply goes , so does the civilization. God is going to get Pharaoh’s attention quickly, by transforming the water supply into blood, now the Egyptians have nothing to drink or bathe, most importantly Egypt believed they had a deity of the water that supplied all their needs. They are finding out its Yahweh who is the true Creator of the Heavens and The Earth

And the fish that is in the river shall die, and the river shall stink; and the Egyptians shall lothe to drink of the water of the river. And the LORD spake unto Moses, Say unto Aaron, Take thy rod, and stretch out thine hand upon the waters of Egypt, upon their streams, upon their rivers, and upon their ponds, and upon all their pools of water, that they may become blood; and that there may be blood throughout all the land of Egypt, both in vessels of wood, and in vessels of stone. Exodus 7:18-19

Also God will allow Moses and Aaron to perform these miracles, why? So maybe Pharaoh would actually listen to them. Just as God performed miracles through Prophets and Apostles , God will perform miracles through Moses and Aaron to reveal He is the true God

And Moses and Aaron did so, as the LORD commanded; and he lifted up the rod, and smote the waters that were in the river, in the sight of Pharaoh, and in the sight of his servants; and all the waters that were in the river were turned to blood. And the fish that was in the river died; and the river stank, and the Egyptians could not drink of the water of the river; and there was blood throughout all the land of Egypt. Exodus 7:20-21

Think about this, all of Egypt including Pharaoh is watching you and God has asked you to touch the water with a rod and it will turn to blood. Moses and Aaron by faith were obedient to God and he did exactly as he said he would. Notice it says Pharaoh and all his servants witnessed this miracle happen, this was the first huge defeat for Pharaoh

And the magicians of Egypt did so with their enchantments: and Pharaoh’s heart was hardened, neither did he hearken unto them; as the LORD had said. And Pharaoh turned and went into his house, neither did he set his heart to this also. Exodus 7:22-23

Pharaoh had some sorcerers that practiced magic, most likely by demonic power. And God allowed these sorcerer to be able to turn water into blood also. Because of this Pharaohs heart became hardened again and he rejected God once again

And the second angel sounded, and as it were a great mountain burning with fire was cast into the sea: and the third part of the sea became blood; And the third part of the creatures which were in the sea, and had life, died; and the third part of the ships were destroyed. Revelation 8:8-9

Now as you study the book of Exodus and the book of Revelation, you will see that the Plagues of Egypt and the Seven Seals almost line up perfectly with each other. Is it a coincidence, I think not. 

You can check out my full commentary on Revelation at unashamedofjesus.org/revelation