71 But Israel violated the instructions about the things set apart for the Lord . A man named Achan had stolen some of these dedicated things, so the Lord was very angry with the Israelites. Achan was the son of Carmi, a descendant of Zimri son of Zerah, of the tribe of Judah. 2 Joshua sent some of his men from Jericho to spy out the town of Ai, east of Bethel, near Beth-aven. 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." 4 So approximately 3,000 warriors were sent, but they were soundly defeated. The men of Ai 5 chased the Israelites from the town gate as far as the quarries, and they killed about thirty-six who were retreating down the slope. The Israelites were paralyzed with fear at this turn of events, and their courage melted away.
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.