Joshua 3:5 tells the people of Israel to consecrate themselves, which means setting themselves apart in preparation for something holy, because God is about to do remarkable things among them the next day. The verse is less a command to earn God’s favor than a call to get ready to meet him at work. Joshua, the leader who had taken over from Moses, speaks these words to the whole nation camped on the east bank of the Jordan River, just before they cross into the land God promised them.
Joshua said to the people, “Sanctify yourselves; for tomorrow the LORD will do wonders among you.”
Joshua 3:5 (WEB)
What Joshua 3:5 Means
The word “sanctify” comes from a root meaning “to set apart” or “to make clean for holy use.” In the Old Testament it describes a person or object being prepared to come near the presence of God. Joshua is asking the people to turn their attention inward and outward at once: to examine their hearts, perhaps to wash and purify themselves in the ways the law required, and to set aside ordinary distractions so they could receive what was coming.
The phrase “tomorrow the LORD will do wonders” is a promise about God’s initiative. The wonders are not produced by Israel’s preparation. The people are told to ready themselves because God is about to act in a way they cannot manufacture. The verse does not promise that every hard situation will end in a miracle, nor does it give a formula for guaranteed results. It promises that God is present and working, and it asks the community to be attentive and ready.
The Context of Joshua 3:5
The book of Joshua is traditionally attributed to Joshua himself, though it likely reached its final form later, and it records Israel’s entry into Canaan after the wilderness years. Its first readers were the Israelites, a people who had lived as slaves in Egypt and had wandered for forty years. The crossing of the Jordan is meant to echo the crossing of the Red Sea under Moses, which is why the surrounding verses stress that God is with Joshua just as he was with Moses.
Verse 4 explains that the ark of the covenant would go ahead of the people, with a gap of about two thousand cubits between the ark and the crowd, so they could see the way forward. Verses 6 through 8 show the priests carrying the ark into the river. Read in that sequence, the call to sanctify is not a vague spiritual exhortation. It is the preparation for a specific moment in which the people must trust God’s leading before they can see the outcome.
Key Phrases in Joshua 3:5
Psalm 46:10
“Be still, and know that I am God. I will be exalted among the nations. I will be exalted in the earth.”
(WEB)
This verse calls the reader to be still and recognize God’s sovereignty. Like Joshua 3:5, it places the emphasis on God’s power to act, inviting the believer to quiet their own striving and make space for him to work among his people.
Exodus 14:13
Moses said to the people, “Don’t be afraid. Stand still, and see the salvation of the LORD, which he will work for you today: for the Egyptians whom you have seen today, you shall never see them again.
(WEB)
Spoken to Israel at the Red Sea, this verse urges the people to stand firm and see the salvation God will bring. It shares the same pattern as Joshua 3:5: a promise of God’s deliverance followed by a call for the people to trust and prepare.
A Short Prayer From Joshua 3:5
Lord, you are the one who acts on behalf of your people. Help me to set aside the noise and distraction that fill my days, and to prepare my heart for what you are about to do. Search me, cleanse what needs cleansing, and make me ready to receive your work without fear. I trust that you are with me as you were with Joshua, and I ask you to show yourself faithful in the ways only you can. Amen.
