Joshua 8:3

3 So Joshua rose with all the people of war to go up to Ai; and Joshua chose 30,000 * men, valiant warriors, and sent them out at night.

Joshua 8:3 Meaning and Commentary

Joshua 8:3

So Joshua arose, and all the people of war, to go up against
Ai
As the Lord had commanded him:

and Joshua chose out thirty thousand mighty men of valour;
out of all the men of war; these were a select company, picked men, not the whole army, as some have thought, for he was ordered to take all the people of war, as he did:

and sent them away by night;
from the main army, that they might pass the city and get behind it undiscovered, for they were sent for an ambush; and of these some were to take the city, and be left in it to burn it, and some to smite the men of Ai, as Abarbinel notes.

Joshua 8:3 In-Context

1 Now the LORD said to Joshua, "Do not fear or be dismayed. Take all the people of war with you and arise, go up to Ai; see, I have given into your hand the king of Ai, his people, his city, and his land.
2 "You shall do to Ai and its king just as you did to Jericho and its king; you shall take only its spoil and its cattle as plunder for yourselves. Set an ambush for the city behind it."
3 So Joshua rose with all the people of war to go up to Ai; and Joshua chose 30,000 men, valiant warriors, and sent them out at night.
4 He commanded them, saying, "See, you are going to ambush the city from behind it. Do not go very far from the city, but all of you be ready.
5 "Then I and all the people who are with me will approach the city. And when they come out to meet us as at the first, we will flee before them.