71 But the children of Israel did wrong about the cursed thing: for Achan, the son of Carmi, the son of Zabdi, the son of Zerah, of the family of Judah, took of the cursed thing, moving the Lord to wrath against the children of Israel. 2 Now Joshua sent men from Jericho to Ai, which is by the side of Beth-aven, on the east side of Beth-el, and said to them, Go up and make a search through the land. And the men went up and saw how Ai was placed. 3 Then they came back to Joshua and said to him, Do not send all the people up, but let about two or three thousand men go up and make an attack on Ai; there is no need for all the people to be tired with the journey there, for it is only a small town. 4 So about three thousand of the people went up, and were sent in flight by the men of Ai. 5 The men of Ai put to death about thirty-six of them, driving them from before the town as far as the stoneworks, and overcoming them on the way down: and the hearts of the people became like water.
Matthew Henry's Commentary on Joshua 7:1-5
Commentary on Joshua 7:1-5
(Read Joshua 7:1-5)
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.