Who Was Joshua in the Bible? The Complete Story of Moses’ Successor (Book of Joshua)

Joshua is one of the great leaders of the Old Testament — the man who took over from Moses and led Israel into the Promised Land. He crossed the Jordan River on dry ground, watched the walls of Jericho fall, and divided Canaan among the twelve tribes. Yet before he was ever a leader, he spent decades as an assistant, waiting in the background while Moses led.

If you have searched for who Joshua was in the Bible, or what his story teaches us today, this is a complete guide. We will walk through his early years as Moses’ aide, his report as one of the twelve spies, his commissioning as Israel’s leader, the crossing of the Jordan, the battle of Jericho, his failures and victories in Canaan, his famous farewell, and five practical life lessons his story still speaks into ours.

Who Was Joshua in the Bible?

Joshua was the son of Nun, from the tribe of Ephraim. He served as Moses’ assistant during the exodus from Egypt and, after Moses died, became the leader who brought Israel into the land God had promised to Abraham. His story begins in Exodus and continues through Numbers and Deuteronomy, and the book of Joshua is named after him.

“Have I not commanded you? Be strong and courageous. Do not be afraid; do not be discouraged, for the LORD your God will be with you wherever you go.” (Joshua 1:9, NIV)

Three things stand out about him. He was a servant first — for about forty years he was known simply as Moses’ aide. He was courageous — when almost everyone around him was afraid, he trusted God. And he was faithful to the end — his final words to Israel are still some of the most quoted in the Bible: “As for me and my household, we will serve the LORD.”

His Name and Background

Joshua was originally called Hoshea, which means “salvation.” Moses renamed him Joshua (Numbers 13:16) — in Hebrew, Yehoshua, meaning “the LORD saves” or “the LORD is salvation.” The Greek form of this name is Iesous — the same name as Jesus. The man who led God’s people into the Promised Land shared his name with the One who would lead God’s people into eternal rest.

Joshua grew up as a slave in Egypt. He would have seen the ten plagues, walked through the Red Sea, and eaten manna in the wilderness. By the time he became Israel’s leader, he had already witnessed decades of God’s faithfulness firsthand.

Moses’ Aide (Exodus 17, 24, 33)

Joshua first appears in Scripture as a military leader. When the Amalekites attacked Israel at Rephidim, Moses told Joshua to choose men and go fight, while Moses stood on a hill with the staff of God in his hands. As long as Moses’ hands were raised, Israel was winning. Joshua “overcame the Amalekite army with the sword” (Exodus 17:13).

After that, Joshua became Moses’ personal assistant. He went with Moses partway up Mount Sinai when God gave the law (Exodus 24:13). And when Moses met with God face to face in the tent of meeting, Scripture notes something quietly beautiful: “his young aide Joshua son of Nun did not leave the tent” (Exodus 33:11). Moses would return to the camp, but Joshua stayed in the presence of God.

These were not glamorous years. Joshua was not in charge. He was learning — watching how Moses led, how he prayed, how he handled crisis and complaint. God was preparing him for a job he did not yet know he would have.

One of the Twelve Spies (Numbers 13-14)

When Israel reached the edge of Canaan, Moses sent twelve men — one from each tribe — to explore the land. Joshua represented the tribe of Ephraim. For forty days they scouted the land. They came back with a cluster of grapes so large it had to be carried on a pole between two men.

Ten of the spies admitted the land was good, but said the people were too strong and the cities too fortified. “We seemed like grasshoppers in our own eyes,” they said (Numbers 13:33). The whole community wept and talked about going back to Egypt.

Only two men disagreed: Joshua and Caleb. They tore their clothes and pleaded with the people:

“The land we passed through and explored is exceedingly good. If the LORD is pleased with us, he will lead us into that land, a land flowing with milk and honey, and will give it to us. Only do not rebel against the LORD. And do not be afraid of the people of the land.” (Numbers 14:7-9, NIV)

The crowd’s answer was to talk about stoning them (Numbers 14:10). Because of the people’s unbelief, God declared that the entire adult generation would die in the wilderness during forty years of wandering. Only Joshua and Caleb would live to enter the land (Numbers 14:30). Joshua spent the next four decades in the desert — not because of his own unbelief, but because of everyone else’s.

Chosen to Succeed Moses (Numbers 27; Deuteronomy 31, 34)

Near the end of his life, Moses asked God to appoint a leader so the people would not be “like sheep without a shepherd.” God answered: “Take Joshua son of Nun, a man in whom is the spirit of leadership, and lay your hand on him” (Numbers 27:18). Moses did so in front of the priest and the whole community.

Before he died, Moses spoke to Joshua in front of all Israel: “Be strong and courageous, for you must go with this people into the land… The LORD himself goes before you and will be with you; he will never leave you nor forsake you” (Deuteronomy 31:7-8). After Moses’ death, Scripture says Joshua “was filled with the spirit of wisdom because Moses had laid his hands on him” (Deuteronomy 34:9).

“Be Strong and Courageous” (Joshua 1)

The book of Joshua opens right after Moses’ death. Imagine stepping into the shoes of the man who had led Israel out of Egypt, received the law, and spoken to God face to face. God spoke directly to Joshua’s fear. Three times in one chapter, He told him to be strong and courageous (Joshua 1:6, 7, 9).

God also told Joshua where his strength would come from: “Keep this Book of the Law always on your lips; meditate on it day and night, so that you may be careful to do everything written in it. Then you will be prosperous and successful” (Joshua 1:8). Joshua’s courage would not come from his own confidence. It would come from God’s presence and God’s word.

Crossing the Jordan (Joshua 2-4)

Before crossing, Joshua sent two spies to Jericho. They were hidden by Rahab, a Canaanite woman who had heard what God had done for Israel and chose to side with them (Joshua 2). The spies returned with a report very different from forty years earlier: “The LORD has surely given the whole land into our hands; all the people are melting in fear because of us” (Joshua 2:24).

The Jordan River was at flood stage (Joshua 3:15). God told Joshua to have the priests carry the ark of the covenant into the water. As soon as their feet touched the river, the water upstream stopped and piled up in a heap, and the entire nation crossed on dry ground. Joshua had twelve stones taken from the riverbed and set up as a memorial, so that future generations would ask, “What do these stones mean?” and hear the story of God’s faithfulness (Joshua 4:6-7).

The Commander of the Lord’s Army and the Fall of Jericho (Joshua 5-6)

Near Jericho, Joshua saw a man standing with a drawn sword. Joshua asked him, “Are you for us or for our enemies?” The answer surprised him: “Neither… but as commander of the army of the LORD I have now come.” Joshua fell facedown, and was told, “Take off your sandals, for the place where you are standing is holy” (Joshua 5:13-15). The question was not whether God was on Joshua’s side, but whether Joshua was on God’s.

Then came one of the most unusual battle plans in history. Israel was to march around Jericho once a day for six days, with priests carrying the ark and blowing trumpets. On the seventh day they marched around seven times. When the trumpets sounded and the people shouted, “the wall collapsed; so everyone charged straight in, and they took the city” (Joshua 6:20). Rahab and her family were spared, just as the spies had promised (Joshua 6:25).

Failure at Ai, the Gibeonites, and the Day the Sun Stood Still (Joshua 7-10)

Joshua’s leadership was not a string of easy victories. After Jericho, Israel was badly defeated at the small town of Ai. Joshua tore his clothes and fell facedown before the ark (Joshua 7:6). God revealed the cause: a man named Achan had secretly taken forbidden plunder from Jericho. Once the sin was dealt with, Israel defeated Ai (Joshua 8).

Later, the people of Gibeon tricked Joshua into a peace treaty by pretending to come from a distant land. Scripture notes the mistake plainly: the Israelites “did not inquire of the LORD” (Joshua 9:14). Even a great leader could be fooled when he relied on what he could see rather than asking God.

Yet Joshua kept his word to the Gibeonites. When five Amorite kings attacked Gibeon, Joshua marched all night to defend them. During that battle, Joshua prayed, “Sun, stand still over Gibeon, and you, moon, over the Valley of Aijalon” — and the sun stopped in the middle of the sky until Israel had won (Joshua 10:12-13). Scripture says, “There has never been a day like it before or since” (Joshua 10:14).

Dividing the Land and Joshua’s Farewell (Joshua 13-24)

After years of campaigns, Joshua divided the land among the tribes of Israel (Joshua 13-21). His old friend Caleb, now eighty-five, asked for the hill country of Hebron — the land where the giants had once frightened the other spies — and Joshua blessed him and gave it to him (Joshua 14:6-14).

When Joshua was old, he gathered all Israel at Shechem. He retold the story of everything God had done, from Abraham to the conquest. Then he challenged them to make a choice:

“But if serving the LORD seems undesirable to you, then choose for yourselves this day whom you will serve… But as for me and my household, we will serve the LORD.” (Joshua 24:15, NIV)

Joshua died at the age of 110 and was buried in his own land at Timnath Serah in the hill country of Ephraim (Joshua 24:29-30). His legacy is summed up in one verse: “Israel served the LORD throughout the lifetime of Joshua and of the elders who outlived him” (Joshua 24:31).

Five Life Lessons from Joshua’s Story

1. Faithfulness in the background prepares you for the foreground.

For about forty years, Joshua was “Moses’ aide.” He stayed in the tent of meeting when others went home. He learned by watching and serving. If you are in a season where you feel unseen or overlooked, Joshua’s story is a reminder that God uses the quiet years. What you are learning now may be exactly what you will need later.

2. Courage is a command, not just a feeling.

God did not tell Joshua, “Wait until you feel brave.” He said, “Be strong and courageous” — three times. Courage was not based on Joshua’s emotions but on God’s promise: “the LORD your God will be with you wherever you go.” Fear may still be present. Courage is choosing to obey anyway, because God is with you.

3. Stand with God even when you are outnumbered.

Ten spies said no. Two said yes. The crowd wanted to stone the two. Joshua and Caleb still refused to back down. Being in the minority does not mean you are wrong. When you know what God has said, stand on it — even if you are standing almost alone.

4. Do not skip asking God, even when it looks obvious.

Joshua’s biggest mistakes — at Ai and with the Gibeonites — came when he moved forward without seeking God. The Gibeonites’ trick looked convincing, and Ai looked easy. But appearances can deceive. Before big decisions, especially the ones that seem simple, stop and pray.

5. Choose — and lead your household to choose — to serve the Lord.

Joshua’s final challenge was personal: “Choose for yourselves this day whom you will serve.” He did not wait to see what everyone else would decide. He made his decision and named his household in it. Faith is not inherited automatically. Every generation, and every person, must choose. Joshua’s example calls us to decide clearly, and to lead those in our care to do the same.

Frequently Asked Questions About Joshua

What does the name Joshua mean?

Joshua (Yehoshua in Hebrew) means “the LORD saves” or “the LORD is salvation.” His original name was Hoshea, meaning “salvation,” and Moses renamed him Joshua (Numbers 13:16). The Greek form of the name is Iesous, the same name as Jesus.

Who was Joshua’s father?

Joshua’s father was Nun, and Joshua belonged to the tribe of Ephraim (Numbers 13:8). Scripture does not tell us anything else about his family.

How old was Joshua when he died?

Joshua died at the age of 110 (Joshua 24:29). He was buried at Timnath Serah, in the land he had received in the hill country of Ephraim (Joshua 24:30).

Why did only Joshua and Caleb enter the Promised Land?

When the twelve spies returned from exploring Canaan, ten gave a fearful report and the people refused to go in. Only Joshua and Caleb trusted God. As a result, God declared that the entire adult generation, except Joshua and Caleb, would die in the wilderness during forty years of wandering (Numbers 14:26-30).

How did the walls of Jericho fall?

Following God’s instructions, Israel marched around Jericho once a day for six days, with priests carrying the ark and blowing trumpets. On the seventh day, they marched around seven times. When the trumpets sounded and the people gave a loud shout, the walls collapsed (Joshua 6:1-20).

Did Joshua write the book of Joshua?

The book does not name its author. Jewish tradition credits much of it to Joshua, and Joshua 24:26 says Joshua “recorded these things in the Book of the Law of God.” However, parts of the book, including the account of his death, were clearly added later.

Where is Joshua’s story in the Bible?

Joshua first appears in Exodus 17 and is mentioned throughout Exodus, Numbers, and Deuteronomy as Moses’ aide and successor. His leadership of Israel is told in the book of Joshua. He is also mentioned in Judges 2:6-9, Acts 7:45, and Hebrews 4:8.

Related Reading

For a short devotional on Joshua’s courage, see What Joshua Teaches Us About Being Strong and Courageous When It’s Your Turn. For the battle itself, read The Battle of Jericho: A Divine Triumph. For the friend who stood with him, see Lessons from Caleb: Trusting God Beyond the Giants. For the woman who hid his spies, read What Rahab Teaches Us About God Using People With a Complicated Past. For his mentor, see What Moses Teaches Us About Saying Yes When You Feel Unqualified. And for a wider guide to the men and women of Scripture, visit our Characters of the Bible pillar.

A Closing Prayer

Father, thank You for Joshua. Thank You for the quiet years You used to prepare him, and for Your promise that You would be with him wherever he went. Make me faithful in the background, even when no one is watching. Give me courage that rests on Your presence, not my feelings. Help me stand with You even when I am outnumbered. Remind me to seek You before every decision. And as for me and my household, help us serve You. In Jesus’ name, Amen.