Joshua 7:1-3 New Revised Standard Version, Anglicised (NRSVA)
The Sin of Achan and Its Punishment
7 But the Israelites broke faith in regard to the devoted things: Achan son of Carmi son of Zabdi son of Zerah, of the tribe of Judah, took some of the devoted things; and the anger of the Lord burned against the Israelites.
2 Joshua sent men from Jericho to Ai, which is near Beth-aven, east of Bethel, and said to them, ‘Go up and spy out the land.’ And the men went up and spied out Ai. 3 Then they returned to Joshua and said to him, ‘Not all the people need go up; about two or three thousand men should go up and attack Ai. Since they are so few, do not make the whole people toil up there.’