Joshua 8:3

3 So Joshua got ready to go to Ai with all his soldiers. He picked out thirty thousand of his best troops 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 The Lord said to Joshua, "Take all the soldiers with you and go on up to Ai. Don't be afraid or discouraged. I will give you victory over the king of Ai; his people, city, and land will be yours.

2 You are to do to Ai and its king what you did to Jericho and its king, but this time you may keep its goods and livestock for yourselves. Prepare to attack the city by surprise from the rear."

3 So Joshua got ready to go to Ai with all his soldiers. He picked out thirty thousand of his best troops and sent them out at night

4 with these orders: "Hide on the other side of the city, but not too far away from it; be ready to attack.

5 My men and I will approach the city. When the men of Ai come out against us, we will turn and run, just as we did the first time.