3 When they returned to Joshua, they said, "Not all the army will have to go up against Ai. Send two or three thousand men to take it and do not weary the whole army, for only a few people live there."
3 And they returned to Joshua, and said unto him, Let not all the people go up; but let about two or three thousand men go up and smite Ai; and make not all the people to labour thither; for they are but few.
English Standard Version
3 And they returned to Joshua and said to him, "Do not have all the people go up, but let about two or three thousand men go up and attack Ai. Do not make the whole people toil up there, for they are few."
3 They returned to Joshua and reported, "Don't bother sending a lot of people - two or three thousand men are enough to defeat Ai. Don't wear out the whole army; there aren't that many people there."
New King James Version
3 And they returned to Joshua and said to him, "Do not let all the people go up, but let about two or three thousand men go up and attack Ai. Do not weary all the people there, for the people of Ai are few."
New Living Translation
3 When they returned, they told Joshua, "There's no need for all of us to go up there; it won't take more than two or three thousand men to attack Ai. Since there are so few of them, don't make all our people struggle to go up there."
Achan took some of the spoil of Jericho. The love of the world is that root of bitterness, which of all others is most hardly rooted up. We should take heed of sin ourselves, lest by it many be defiled or disquieted, Hebrews 12:15; and take heed of having fellowship with sinners, lest we share their guilt. It concerns us to watch over one another to prevent sin, because others' sins may be to our damage. The easy conquest of Jericho excited contempt of the enemy, and a disposition to expect the Lord to do all for them without their using proper means. Thus men abuse the doctrines of Divine grace, and the promises of God, into excuses for their own sloth and self-indulgence. We are to work out our own salvation, though it is God that works in us. It was a dear victory to the Canaanites, whereby Israel was awakened and reformed, and reconciled to their God, and the people of Canaan hardened to their own ruin.