Numbers · chapter 21 of 36
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Numbers 21 tells how Israel defeats the Canaanite king of Arad, grows impatient on the road around Edom and is bitten by fiery serpents. Moses lifts up a bronze serpent on a pole, and whoever looks at it lives. The chapter ends with victories over Sihon, king of the Amorites, and Og, king of Bashan, and Israel taking their cities.
After Aaron's death, Israel begins the final march toward the plains of Moab. Numbers 21 combines defeat, complaint, judgment and salvation with the first military victories on the way into the land. In a single page we see both the hardness of the people's hearts and the grace of God, and from it comes one of the Old Testament images that Jesus himself cites.
The Canaanite king of Arad, who lived in the Negev, attacks Israel and takes some captives. Israel makes a vow to the Lord: if he delivers these enemies, they will destroy their cities. The Lord listens, Israel defeats them and the place is named Hormah.
The people leave Mount Hor by the way of the Red Sea to go around Edom, and along the way they grow impatient. They speak against God and against Moses, complaining that there is no bread or water and that they loathe the miserable food they receive. The Lord sends fiery serpents that bite the people, and many die. They confess their sin and ask Moses to pray that the Lord take the serpents away. Moses prays, and God tells him to make a bronze serpent and set it on a pole: everyone who is bitten and looks at it will live.
Israel continues through Oboth, Iye-abarim, the Zered valley and the Arnon, and at Beer the Lord provides a well. Israel asks Sihon, king of the Amorites, to pass through his land without touching fields or wells, but Sihon comes out to fight and is defeated at Jahaz. Israel takes his cities, including Heshbon. Then it defeats Og, king of Bashan, at Edrei and takes his land as well.
References follow ESV book names and verse numbers. Read each verse in your Bible before the explanation.
The people speak against God and Moses, complaining that there is no bread or water and that they loathe the food of the wilderness. It is the same old complaint and reveals a heart that forgets each provision received.
The people admit that they sinned by speaking against the Lord and Moses, and they ask Moses to pray for them. This is the repentance God looks for before showing his mercy.
God commands a bronze serpent to be set on a pole so that anyone bitten who looks at it will live. Salvation comes through a look of faith at what God appointed, not through personal effort, and Moses obeys.
The Lord tells Moses not to fear Og, king of Bashan, because he is delivering him into his hand. The word reminds us that victory over enemies comes from God and not from the size of an army.
6 questions with answers and references, ready for Sunday school, small group or a Bible quiz night.
Answer: It promised to destroy the enemy's cities if the Lord gave them into its hand. — Numbers 21:2
Answer: Because they were going around Edom, and they complained that there was no bread or water and that they were tired of the food they received. — Numbers 21:4-5
Answer: Fiery serpents that bit the people, and many died. — Numbers 21:6
Answer: A bronze serpent on a pole; anyone bitten who looked at it lived. — Numbers 21:8-9
Answer: Sihon, king of the Amorites, who came out to fight and was defeated. — Numbers 21:23-24
Answer: Og, king of Bashan, defeated at Edrei. — Numbers 21:33-35
The chapter shows a familiar cycle: the people complain, suffer the consequences, repent and God provides a way out. It is worth asking when we have taken for granted what God has given us and complained about what we lack. Persistent complaining cools gratitude and damages community.
The bronze serpent teaches that salvation comes from what God appoints and is received by looking to it in faith. Jesus himself uses it to explain his cross in the gospel of John. In a class or small group you can talk about looking to Christ, not to our own strength, when we feel bitten by sin or guilt.
Numbers 21 ends with Israel holding the lands of Sihon and Og, at the edge of the plains of Moab. There a frightened king will try what no sword could do: hire a prophet to curse Israel, the subject of chapter 22.
The text says only that God commanded it and that whoever looked at it lived. The look was an act of obedience and trust in God's word, not a power in the object. Centuries later the people turned it into an idol and King Hezekiah destroyed it (2 Kings 18:4).
Jesus said that as Moses lifted up the serpent in the wilderness, the Son of Man must be lifted up so that whoever believes in him has eternal life (John 3:14-15). The look of faith of those bitten is compared with faith in the crucified Christ.
They were Amorite kings east of the Jordan. Sihon ruled from Heshbon and Og was king of Bashan. Their defeats are later remembered in the Bible as mighty acts of God on behalf of Israel.