What happened during the ten plagues of Egypt?

After Moses's first appeal, Pharaoh not only refused to release Israel but increased their labor (Exodus 5:1-9). What followed was a series of ten plagues, each announced in advance and each more severe than the last: the Nile turning to blood, then frogs, gnats, flies, the death of Egyptian livestock, boils, a devastating hailstorm, locusts, three days of total darkness, and finally the death of every firstborn son in Egypt (Exodus 7-12). Throughout, God repeatedly states His purpose: 'that you may know that I am the LORD' (Exodus 7:17), and 'that my name might be proclaimed in all the earth' (Exodus 9:16). These were never random disasters; they were a deliberate, escalating demonstration of God's supremacy.

Each plague was aimed squarely at Egyptian religion. The Nile, turned to blood, was sacred to the god Hapi and associated with the god Osiris. Frogs mocked Heqet, the frog-headed goddess of fertility and childbirth. The plague of darkness directly challenged Ra, the sun god, considered one of Egypt's chief deities and connected to Pharaoh's own claimed divine status. Numbers 33:4 explicitly says that in the final plague, the LORD 'inflicted judgment on their gods.' This was never merely a contest of raw power; it was a public unmasking of false gods as powerless before the true and living God.

Exodus describes Pharaoh's heart being hardened in two ways: sometimes Pharaoh hardens his own heart (Exodus 8:15, 8:32), and later God is said to harden it (Exodus 9:12; 10:1). Both are true and not contradictory. Pharaoh's repeated, willful refusal to repent, even after seeing undeniable evidence of God's power, led God to give him over to the stubbornness he had already chosen, using even Pharaoh's resistance to display more glory than a quick surrender would have. This pattern is a sober warning about what continued, hardened rejection of God's revealed truth can lead to.

A fair question arises from this account: did ordinary Egyptians, who had no power over Pharaoh's decisions, deserve to suffer alongside him? Scripture does not pretend this is a simple issue. Egypt as a nation had enslaved and brutalized Israel for generations, and the plagues fell on a society that had, collectively and over centuries, benefited from and perpetuated that oppression (Exodus 1:8-14). Yet the text also shows real opportunities for individual Egyptians to respond. God warned in advance of the hail specifically so that 'whoever among the officials of Pharaoh feared the word of the LORD' could bring their servants and livestock to shelter, and some Egyptians did exactly that, sparing what they could (Exodus 9:19-21). Later, when Israel finally left Egypt, 'many other people' — a mixed multitude of non-Israelites — went with them (Exodus 12:38), suggesting that at least some Egyptians recognized where the true God's favor rested and chose to align themselves with His people rather than with Pharaoh's doomed resistance. The plagues, in other words, were not blind collective punishment; they included real warning, real opportunity to respond, and real mercy for anyone willing to take God at His word, even inside Pharaoh's own court.

Before the tenth plague, God gave Israel detailed instructions: each household was to take a spotless lamb, kill it, and paint its blood on the doorposts, so that when the LORD passed through Egypt in judgment that night, He would 'pass over' any house marked by the blood (Exodus 12:1-13). The firstborn of Egypt died; the firstborn of Israel, sheltered under the blood of a substitute, lived. This event became the foundation of the annual Passover feast, and the New Testament identifies Jesus explicitly as 'our Passover lamb,' sacrificed for us (1 Corinthians 5:7), so that judgment passes over everyone covered by His blood.

As the plagues progressed, God began drawing an increasingly sharp line between Egypt and His own people. Starting with the fourth plague of flies, God specifically exempted the region of Goshen where Israel lived, saying, 'I will deal differently with the land of Goshen... so that you will know that I, the LORD, am in this land' (Exodus 8:22-23). The plague on livestock spared every animal belonging to the Israelites (Exodus 9:4-7), and during the plague of thick darkness that covered Egypt for three days, 'all the Israelites had light in the places where they lived' (Exodus 10:23). By the time of the final plague, no one in Egypt could reasonably claim these were natural disasters that happened to strike everyone equally; they were targeted judgments with a clearly protected people in the middle of them.

This growing distinction between Egypt and Israel served the same purpose as the plagues themselves: proving, beyond any ambiguity, that the LORD alone governs nature, judgment, and mercy, and that He was able to protect His own people in the middle of devastating judgment on those who opposed Him.

The plagues remind us that God's patience has a purpose, that He is not indifferent to the oppression of His people, and that no false god or human power can ultimately stand against Him. They also remind us that judgment and mercy run side by side throughout Scripture — Egypt experienced righteous judgment for generations of cruelty, while Israel experienced deliverance not because they earned it, but because they trusted God's provided means of escape. That same choice stands before every reader today.