What Is Joshua About?

Understanding Joshua 1:9, Joshua 1:1-5, Joshua 24:14-15, Joshua 6:20

Joshua is the book of fulfillment. After 400 years of slavery in Egypt, 40 years of wilderness wandering, and the death of Moses — the promise God made to Abraham ('To your offspring I will give this land,' Genesis 12:7) is finally, dramatically kept. Israel crosses the Jordan, conquers Canaan, and settles the land. It is a book of war, faith, failure, and covenant — and one of the most theologically challenging books in the Bible.

The man Joshua

Joshua son of Nun was Moses' assistant and military commander from the beginning. He led Israel's first battle against the Amalekites at Rephidim (Exodus 17:9-13). He accompanied Moses partway up Mount Sinai (Exodus 24:13). He was one of the twelve spies sent into Canaan, and one of only two (with Caleb) who believed Israel could take the land (Numbers 14:6-9). For that faith, he and Caleb were the only adults from the Exodus generation allowed to enter the Promised Land.

Moses commissioned Joshua as his successor at God's command: 'Be strong and courageous, for you will bring the Israelites into the land I promised them on oath, and I myself will be with you' (Deuteronomy 31:23). The book that bears his name opens with God's direct charge: 'Moses my servant is dead. Now then, you and all these people, get ready to cross the Jordan River into the land I am about to give to them' (Joshua 1:2).

The repeated command — 'Be strong and courageous' (1:6, 7, 9, 18) — suggests Joshua needed encouragement. Following Moses was an impossible act. Leading a nation into military conquest against fortified cities required not just bravery but deep trust in God's promise.

Structure

The book divides into three major sections:

Chapters 1-5: Preparation and entry

Israel crossed the Jordan River on dry ground — a deliberate echo of the Red Sea crossing (3:14-17). God parted the waters so the people would know 'that the hand of the LORD is powerful' (4:24). Twelve memorial stones were set up at Gilgal.

At Gilgal, the men were circumcised (the wilderness generation had not been circumcised), the Passover was celebrated, and the manna ceased — the day after they ate the produce of the land (5:11-12). The wilderness was over.

Then Joshua had a mysterious encounter: a man with a drawn sword stood before him. Joshua asked: 'Are you for us or for our enemies?' The answer was unexpected: 'Neither. But as commander of the LORD's army I have now come' (5:14). God was not on Israel's side. Israel was on God's side. The distinction matters.

Chapters 6-12: Conquest

The conquest narratives begin with Jericho — the most famous military victory that involved no military action. Israel marched around the city once a day for six days, then seven times on the seventh day, then shouted. 'The wall collapsed' (6:20). Jericho fell by faith, not force.

The second battle — Ai — was a humiliating defeat because of Achan's sin. Achan had taken forbidden plunder from Jericho, violating the ban (herem, total dedication to God). God told Joshua: 'Israel has sinned... That is why the Israelites cannot stand against their enemies' (7:11-12). After Achan's sin was purged, Ai fell through military ambush.

The Gibeonites tricked Israel into a peace treaty by pretending to be from a distant land (chapter 9). Joshua honored the treaty despite the deception — a lesson in keeping oaths.

Chapters 10-12 record a rapid military campaign through southern and northern Canaan. Key victories included the battle where the sun 'stopped in the middle of the sky' (10:13) and the defeat of Hazor, 'the head of all these kingdoms' (11:10). Chapter 12 lists 31 defeated kings.

Chapters 13-22: Land distribution

The second half of Joshua — often skipped by readers — records the allotment of territories to the twelve tribes. This section is theologically critical: the distribution of land is the concrete fulfillment of God's promise to Abraham. Every boundary line, every tribal territory, every listed city is evidence that God keeps His word.

Caleb — now 85 years old — claimed his inheritance with unflinching faith: 'I am still as strong today as the day Moses sent me out... Now give me this hill country that the LORD promised me that day' (14:11-12). Caleb drove out the Anakites (giants) from Hebron.

The Levites received 48 cities scattered throughout Israel's territory rather than a contiguous territory — they were distributed among all the tribes as a priestly presence. Six cities of refuge were established where those who committed accidental homicide could flee for protection (chapter 20).

Chapters 23-24: Covenant renewal

Joshua's farewell addresses mirror Moses' farewell in Deuteronomy. In chapter 23, he warned Israel not to intermarry with the remaining Canaanite nations or worship their gods — precisely the temptations that would later destroy them.

Chapter 24 records a covenant renewal ceremony at Shechem. Joshua recited God's faithfulness from Abraham through the Exodus to the conquest, then issued his famous challenge: 'Choose for yourselves this day whom you will serve, whether the gods your ancestors served beyond the Euphrates, or the gods of the Amorites, in whose land you are living. But as for me and my household, we will serve the LORD' (24:15).

The people declared their loyalty. Joshua set up a stone witness and said: 'This stone will be a witness against us. It has heard all the words the LORD has said to us' (24:27).

The theological challenge: conquest and violence

Joshua is one of the Bible's most morally challenging books. God commanded the destruction of Canaanite cities and their inhabitants — the herem ban. 'Do not leave alive anything that breathes. Completely destroy them' (Deuteronomy 20:16-17). Joshua carried out these commands: 'Joshua took the entire land... Then the land had rest from war' (11:23).

How do readers reconcile this with the God of love revealed in Jesus? Several perspectives have been offered:

Divine judgment: The Canaanite conquest was God's judgment on extreme moral corruption. Genesis 15:16 says God waited 400 years — 'the sin of the Amorites has not yet reached its full measure.' Canaanite religion involved child sacrifice (Molech worship), ritual prostitution, and practices God called 'detestable' (Deuteronomy 18:9-12). The conquest was not ethnic cleansing but moral judgment executed at a specific time for specific reasons.

Ancient Near Eastern rhetoric: Some scholars argue that 'utterly destroy' language was standard ancient Near Eastern military rhetoric (hyperbole for decisive victory) rather than literal commands for total annihilation. The text itself supports this — Joshua 'utterly destroyed' populations that later appear alive and intermarrying with Israelites. The rhetoric was comprehensive; the reality was more complex.

Progressive revelation: The Bible reveals God's character progressively. Joshua represents an earlier stage of revelation — real and authoritative but not the final word. Jesus' teaching on loving enemies (Matthew 5:44) does not contradict Joshua but fulfills and transcends the principle behind it.

Theological purpose: The violence in Joshua serves a theological function — demonstrating the seriousness of sin, the holiness of God, and the impossibility of coexistence between God's people and practices that destroy human dignity. The New Testament applies the conquest metaphor spiritually: Christians wage war against sin, not people (Ephesians 6:12).

No single explanation removes the discomfort, and perhaps that is intentional. Joshua forces readers to wrestle with the sovereignty and judgment of God — realities that resist easy domestication.

Key themes

Faithfulness: 'Not one of all the LORD's good promises to Israel failed; every one was fulfilled' (21:45). This verse is the theological heart of Joshua — God keeps every promise.

Obedience: Success depended on obedience to God's commands. When Israel obeyed (Jericho), they triumphed. When they disobeyed (Achan, the Gibeonite treaty), they failed or were deceived.

Rest: 'The LORD gave them rest on every side, just as he had sworn to their ancestors' (21:44). The conquest brought rest — a concept that Hebrews 4 extends to spiritual rest in Christ.

Joshua and Jesus: The names Joshua (Yehoshua) and Jesus (Iesous) are the same name — 'YHWH saves.' Joshua led Israel into the earthly Promised Land; Jesus leads His people into the heavenly one. The parallels are deliberate: crossing water (Jordan/baptism), defeating enemies (Canaan/sin), entering rest (land/salvation).

Why Joshua matters

Joshua matters because it demonstrates that God's promises are not abstract theology — they become concrete reality. Land is measured, boundaries are drawn, cities are built. The God who promised Abraham descendants and a homeland delivered both. For readers who trust God's promises in their own lives — promises of presence, provision, and ultimate redemption — Joshua says: He will keep His word. Not one promise will fail.