Joshua 7:1-2

But the Israelites did not obey the LORD. There was a man from the tribe of Judah named Achan. (He was the son of Carmi and grandson of Zabdi, who was the son of Zerah.) Because Achan kept some of the things that were to be given to the LORD, the LORD became very angry at the Israelites. Joshua sent some men from Jericho to Ai, which was near Beth Aven, east of Bethel. He told them, “Go to Ai and spy out the area.” So the men went to spy on Ai.