Chapter Text
Aaron's Staff Becomes a Serpent
The Plague of Blood
Summary
God commands Moses to go to Pharaoh, declaring that He has made Moses 'a god to Pharaoh' and Aaron his prophet. God announces He will multiply signs and wonders in Egypt, but Pharaoh will not listen, so that God may lay His hand upon Egypt and bring Israel out by great judgments. Before Pharaoh, Aaron casts down his rod and it becomes a serpent. Pharaoh's magicians replicate the feat, but Aaron's rod swallows theirs. Pharaoh's heart is hardened. God then sends the first plague: Aaron strikes the Nile with his rod and all Egypt's water turns to blood. Fish die, the river stinks, and Egyptians cannot drink. The magicians replicate the sign, and Pharaoh remains unmoved for seven days.
Meaning
The phrase 'a god to Pharaoh' does not imply deity but authority — Moses speaks with divine commission to the most powerful ruler on earth. Aaron's rod swallowing the magicians' rods is a decisive display of supremacy, not merely equality.
The plague of blood strikes at the heart of Egyptian religion. The Nile was worshipped as the god Hapi, source of all fertility. By turning it to blood, God demonstrates sovereignty over what Egypt considered divine. The magicians' replication gives Pharaoh the excuse he seeks to harden his heart, revealing how sinners grasp at any reason to resist God.
Background
Egyptian court magicians were a recognized priestly class skilled in ritual arts. Their ability to replicate certain signs may reflect demonic power, sleight of hand, or both. The serpent held deep significance in Egyptian religion, and the swallowing of their serpents challenged Egypt's royal theology.
The Nile was the absolute center of Egyptian civilization. Annual floods sustained agriculture and the entire economy. Disrupting it struck at Egypt's most fundamental dependence.
Chapter Outline
- vv. 1-7God commissions Moses and Aaron
- vv. 8-13Aaron's rod becomes a serpent
- vv. 14-18God announces the first plague
- vv. 19-21The Nile turned to blood
- vv. 22-25Pharaoh's heart remains hardened
Key Verses
“And the LORD said unto Moses, See, I have made thee a god to Pharaoh: and Aaron thy brother shall be thy prophet.”— 7:1
This verse establishes the divinely ordained authority structure for the confrontation with Egypt. Moses stands as God's representative with delegated authority, while Aaron serves as his spokesman — mirroring the relationship between God and His prophets.
“And I will harden Pharaoh's heart, and multiply my signs and my wonders in the land of Egypt.”— 7:3
One of the most theologically debated verses in Scripture, raising profound questions about divine sovereignty and human responsibility. God declares His intent to use Pharaoh's resistance as the occasion for displaying His power through multiplied judgments.
“And the Egyptians shall know that I am the LORD, when I stretch forth mine hand upon Egypt, and bring out the children of Israel from among them.”— 7:5
This verse reveals the ultimate purpose of the plagues — not merely Israel's liberation, but the demonstration of God's identity and supremacy to all Egypt. The phrase 'know that I am the LORD' becomes a refrain throughout the plague narrative.
“For they cast down every man his rod, and they became serpents: but Aaron's rod swallowed up their rods.”— 7:12
Though Egypt's magicians could imitate the sign, Aaron's rod consuming theirs demonstrated the decisive superiority of God's power over Egyptian sorcery — a theme that intensifies as the plagues progress and the magicians' abilities fail.
People & Places
People
- Moses — God's appointed deliverer of Israel, here commissioned as God's representative before Pharaoh at eighty years of age.
- Aaron — Moses' elder brother, serving as his spokesman and performing signs before Pharaoh at eighty-three years of age.
- Pharaoh — The king of Egypt who refuses to release Israel, his heart hardened against God's commands and miraculous signs.
- The magicians of Egypt — Court sorcerers who replicate certain signs through enchantments, providing Pharaoh a pretext to dismiss God's power.
Places
- Egypt — The land of Israel's bondage, now becoming the theater of God's judgments against its gods and its king.
- The river (Nile) — Egypt's life-giving waterway, struck in the first plague and turned to blood — a direct assault on Egypt's dependence and worship of the Nile.
Prophecy & Fulfillment
God's declaration in verse 4 that He would bring forth Israel 'by great judgments' begins to fulfill His covenant promise to Abraham in Genesis 15:14: 'that nation, whom they shall serve, will I judge: and afterward shall they come out with great substance.' The plagues also foreshadow later biblical themes of divine judgment upon nations that oppose God's people. The plague of blood (vv. 17–21) has typological connections to the apocalyptic imagery of Revelation 16:4–6, where waters again become blood in judgment.
Devotional
God meets us where we are. Moses, at eighty, might have seemed past the age of great undertakings, yet this was precisely when God called him to his life's defining work. Our timelines are not God's timelines.
Pharaoh's hardened heart is a sobering warning: each refusal to heed God's voice makes the next refusal easier. The magicians' imitations gave him just enough cover to justify his stubbornness. We too can find counterfeit reasons to resist what God is clearly saying.
Yet the chapter's deepest truth is found in God's purpose — that all would 'know that I am the LORD.' Even in judgment, God's aim is revelation, not mere punishment.
Literary Style
Narrative prose structured around divine speech and obedient execution. The chapter employs a recurring pattern — God commands, Moses and Aaron obey, Pharaoh resists — that will govern the entire plague cycle. Dialogue alternates with action, and the formulaic refrain 'as the LORD had said' underscores divine foreknowledge and sovereignty throughout.