When Jesus Compares Himself to Moses' Bronze Serpent

A bronze serpent hung on a pole, in the middle of the desert. Fifteen centuries later, Jesus picks up this image to talk about himself to Nicodemus. Why? Because what Moses did in Numbers 21 announces exactly what Jesus was about to accomplish on the cross.

Introduction: a strange image Jesus claims for himself

The story in Numbers 21 takes place after forty years of wandering in the desert. The people of Israel are not far now from entering Canaan. Miriam and Aaron have died. Under Moses' leadership, the people head toward the plains of Moab, facing the land of promise. It's the final stretch.

And yet the people still find a way to complain against God and Moses. So the LORD sends fiery serpents; many die. The people repent. God tells Moses to make a bronze serpent and set it on a pole: whoever looks at it keeps their life.

What makes this story so important for you today is what Jesus himself makes of it. To Nicodemus he declares: "As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up, that whoever believes in him should not perish, but have eternal life." (John 3:14-15).

In other words, the bronze serpent isn't some quirky Old Testament detail. It's a prophetic announcement of the cross. Let's follow the thread of the text in four stages: the people's sin, the judgment, the repentance, and God's solution.

The outline of the message

1. The people's sin (Numbers 21:4-5)

The people spoke against God and against Moses. You'd think that after everything they had seen (the Red Sea opened, the bitter waters of Marah made sweet, the victory over Amalek when Moses lifted his hands) their hearts would have grown trusting. But no. Their hearts grew harder, more impatient.

That's why patience has to be a quality in God's child. James 5:7 reminds us: "Be patient therefore, brothers, until the coming of the Lord. Behold, the farmer waits for the precious fruit of the earth, being patient over it, until it receives the early and late rain." We live in a time when people like to wait less and less. And yet the Bible asks you to be patient. You can't sow and reap on the same day.

The people spoke badly, and that's never harmless. There is real power in our words. "There is one who speaks rashly like the piercing of a sword, but the tongue of the wise heals" (Proverbs 12:18). Your words can bring peace, encouragement, blessing, or wound like a sword and leave bitterness behind them.

This people had been enslaved for 430 years in Egypt. Now they are free, but they no longer see that privilege. They had grown tired of God's grace. The manna, that bread God gave them every day, they called "this miserable bread." And Jesus himself would say: "the bread of God is that which comes down out of heaven, and gives life to the world" (John 6:33). The manna is a picture of Christ.

They also said, "there is no water." Again, that wasn't true. 1 Corinthians 10:4 tells us: "and all drank the same spiritual drink. For they drank of a spiritual rock that followed them, and the rock was Christ." The people had become spiritually blind. They no longer saw the manna, no longer saw the rock. This is the devil's work, and he still tries today to blind you so you can no longer see God's blessings in your life.

Jesus warns: "every idle word that men speak, they will give account of it in the day of judgment" (Matthew 12:36). You bring a curse on yourself when you speak carelessly.

The people lacked discipline. They didn't put God first. A victorious life comes from daily discipline, much like an athlete who trains even when it's raining. David and Joseph reacted very differently to temptation: David, on his rooftop, wasn't watchful, and he fell with Bathsheba; Joseph, close to God and alert, fled from Potiphar's wife. The difference between the two is daily spiritual discipline.

2. The judgment: venom that brings death (Numbers 21:6)

The LORD sent fiery serpents among the people, and they bit them. These serpents were venomous. In the Bible, venom is a picture of sin: "the wages of sin is death, but the free gift of God is eternal life in Christ Jesus our Lord" (Romans 6:23).

Sin is an invisible venom. If you let it stay in you, it leads you to spiritual death. We can't take this lightly, because God is holy and just: he is never in fellowship with evil. But he has provided for your salvation.

A Christian who lets sin settle in will run into trouble. Picture wolves that, licking a frozen, blood-covered knife, slice their own tongues without even noticing, and slowly bleed themselves out. That's how sin works: you think you're enjoying it, you get drunk on it, but it destroys you from the inside.

In the days of the prophet Samuel, the people had grown used to compromise. Idols had crept into their homes: "If you are returning to the LORD with all your heart, then put away the foreign gods and the Ashtaroth from among you, and direct your hearts to the LORD, and serve him only" (1 Samuel 7:3). The Bible calls this spiritual adultery. God is a jealous God; he does not share his glory. Anything that isn't from him has no place in your house.

3. The people's repentance (Numbers 21:7)

The people came to Moses and confessed their sin: "We have sinned, because we have spoken against the LORD, and against you. Pray to the LORD, that he take away the serpents from us." This is the necessary step for anyone who has sinned: repentance.

Their hearts had been touched. They asked for forgiveness. God wants to forgive, but the approach has to be sincere. "The sacrifices of God are a broken spirit. A broken and contrite heart, O God, you will not despise" (Psalm 51:17). God won't forgive you against your will. Without repentance, there is no forgiveness.

You also need to grasp how serious sin is in God's eyes. We don't see this naturally. It's the Holy Spirit who awakens the heart: "he, when he has come, will convict the world about sin, about righteousness, and about judgment" (John 16:8). Once that seriousness is felt, repentance becomes sincere.

Moses prayed for the people even though they had spoken against him. He held no grudge. There's a lesson here for you: you too will be called to forgive those who have wronged you. And notice this well: the very person the people criticized is the one God used to bless them. The person you're judging today might be the instrument God uses for your own blessing.

4. God's solution: the bronze serpent lifted up (Numbers 21:8-9)

The LORD gave Moses his instructions: "Make a fiery serpent, and set it on a pole. It shall happen, that everyone who is bitten, when he sees it, shall live." Moses made a serpent of bronze and set it on the pole. And whoever, bitten by a serpent, looked at the bronze serpent, lived.

The solution doesn't come from man. It comes from God. Sin is so serious that no human remedy can cure it. Go to any pharmacy: you won't find a single medicine for sin. It is in the Word of God that you find everything needed for forgiveness.

Sin can't be seen, much like a cancer that destroys quietly from the inside while showing nothing on the outside. And if it isn't dealt with, it leads to eternal death.

God's solution is surprisingly simple: "look and live." The people didn't have to earn it, pay for it, or understand it. They only had to believe and obey: lift their eyes toward the serpent that had been raised up. That's still true today. No one is forced. You just need to believe what God says and obey.

5. The parallel with the cross: "so must the Son of Man be lifted up" (John 3:14)

Why does Jesus pick up this passage to speak about himself? Because the parallel is striking: a serpent lifted on a wooden pole, a Christ lifted on a wooden cross. On the cross, Jesus stands between God and man. "For there is one God and one mediator between God and men, the man Christ Jesus" (1 Timothy 2:5). Don't look elsewhere. Don't search for other solutions. Come to Jesus Christ, who lets you come to God.

There is only one condition for salvation: believe. The work is done; Jesus died on the cross to wipe out your sins. But not everyone is saved. The text says it plainly: "that whoever believes in him should not perish, but have eternal life." Without faith, there is no possible salvation. Salvation is both Christ's finished work, offered to all, and the personal decision to believe in Jesus as Lord and Savior. Just as the bitten Israelite was healed by looking at the bronze serpent, you are forgiven by looking to Jesus lifted up on the cross.

You might be surprised that Jesus takes up the image of the serpent, usually a picture of the devil, that "ancient serpent" who tempted Adam and Eve. How can the Son of God be pictured by a serpent? Paul answers: "For him who knew no sin he made to be sin on our behalf, so that in him we might become the righteousness of God" (2 Corinthians 5:21). On the cross, Jesus carried your sin; he was "made sin" to pay for it. And once our sins are wiped away, God's righteousness is credited to us. That's why the Bible calls Christians "saints," not because they are perfect, but because they are justified by the blood of Jesus.

6. A warning: when a blessing turns into superstition (2 Kings 18:4)

This bronze serpent, a source of life for the people, would come to a bad end. Seven centuries later, under King Hezekiah, we read: "He removed the high places, and broke the pillars, and cut down the Asherah. He broke in pieces the bronze serpent that Moses had made, because in those days the children of Israel burned incense to it; and he called it Nehushtan." (2 Kings 18:4).

In other words, the blessing had turned into an idol. The people were no longer seeking the God who blesses, but the blessed object itself. You need to watch for this. Even a great blessing from God can, over time, turn into superstition if you don't stay in living fellowship with the giver. We need to pray to be constantly renewed by the Holy Spirit, and not slide into empty religion.

Key takeaways

• The bronze serpent points to the cross. This isn't just an odd Old Testament curiosity: Jesus himself claimed it as a picture of his being lifted up on the cross (John 3:14).
• Complaining is never harmless. The people bitten by serpents had first bitten God with their words. Your words can bless, or wound like a sword.
• Sin is an invisible venom. You can't see it from the outside, but it destroys and leads to spiritual death if you don't deal with it.
• Forgiveness requires repentance. God wants to forgive, but you have to take the step: acknowledge, humble yourself, ask for grace.
• "Look and live." Salvation is received through a simple act of faith, not through merit. Like the bitten Israelite who lifted his eyes, you look to Jesus lifted up.
• A blessing can turn into superstition. Don't cling to the object or the means; cling to the God who blessed you.

Personal application

1. What are you complaining about right now? Identify a blessing you no longer see, and take five minutes to name it to God.
2. Is there a sin you're letting settle in because it doesn't "show"? Name it, and bring it to the Lord in sincere repentance.
3. Has someone hurt you with their words or attitude? Are you willing, like Moses, to pray for that person instead of holding a grudge?
4. What daily discipline (prayer, the Word, fellowship) do you want to put in place this week, to be "ready" like Joseph rather than caught off guard like David?
5. Is there a blessing, a ministry, or a past experience you're at risk of turning into an idol? How can you return to the God who gives, rather than to the gift?

Verses cited

• Numbers 21:4-9 · The fiery serpents and the bronze serpent on the pole
• John 3:14-15 · "As Moses lifted up the serpent... so must the Son of Man be lifted up"
• Romans 6:23 · The wages of sin is death
• 2 Corinthians 5:21 · He made him to be sin on our behalf
• John 6:33 · The bread of God comes down from heaven
• 1 Corinthians 10:4 · The spiritual rock that followed them was Christ
• James 5:7 · Be patient until the coming of the Lord
• Proverbs 12:18 · The tongue of the wise heals
• Matthew 12:36 · Account for every idle word
• 1 Samuel 7:3 · Put away the foreign gods from among you
• Psalm 51:17 · The acceptable sacrifice is a broken spirit
• 2 Kings 18:4 · Hezekiah breaks in pieces the bronze serpent turned Nehushtan

FAQ

Why does God ask Moses to make a serpent, when carved images are forbidden?
The Law forbids carved images made for worship (Exodus 20:4). Here, God explicitly commands the making of a one-time object, for a specific purpose: to serve as a visible sign pointing to his salvation. It was never meant to be worshiped, but to be a point of faith to look to. Proof that it was never meant for worship: when, seven centuries later, the people started burning incense to it, King Hezekiah broke it without hesitation (2 Kings 18:4).

Why does Jesus compare himself to a serpent, usually a symbol of the evil one?
Because on the cross, something breathtaking happens: the one who never sinned was "made to be sin for us" (2 Corinthians 5:21). Jesus carries our sin, our venom, on himself. The image of the lifted-up serpent doesn't mean Jesus is evil; it means he takes evil upon himself, so that we can be healed by looking to him.

What does it practically mean to "look" to Jesus lifted up on the cross?
It doesn't mean staring at a crucifix or performing a ritual. It means believing that his death paid for your sins, and giving him your life. Just as the bitten Israelite in the desert had no antidote, no potion, no sacrifice to offer (only to believe what God said and lift his eyes), your salvation is received by faith. It's simple, it's free, and it's within your reach today.