Joshua 7

 The Lord warned Israel as they were about to attack Jericho - 

"...ye, in any wise keep yourselves from the accursed thing, lest ye make yourselves accursed, when ye take of the accursed thing, and make the camp of Israel a curse, and trouble it.

At19 But all the silver, and gold, and vessels of brass and iron, are consecrated unto the Lord: they shall come into the treasury of the Lord." (Joshua 6:18–19)

Later as the Israelites attack Ai as lose thirty-six warriors that the Lord tells Joshua - 

"Israel hath sinned, and they have also transgressed my covenant which I commanded them: for they have even taken of the accursed thing, and have also stolen, and dissembled also, and they have put it even among their own stuff."  (Joshua 7:11)

As Joshua interviews the camp - 

"...Joshua said unto Achan, My son, give, I pray thee, glory to the Lord God of Israel, and make confession unto him; and tell me now what thou hast done; hide it not from me.

20 And Achan answered Joshua, and said, Indeed I have sinned against the Lord God of Israel, and thus and thus have I done:

21 When I saw among the spoils a goodly Babylonish garment, and two hundred shekels of silver, and a wedge of gold of fifty shekels weight, then I coveted them, and took them; and, behold, they are hid in the earth in the midst of my tent, and the silver under it."  (Joshua 7:19–21)

Achan and his family was then brought to Joshua and - 

"...Joshua said, Why hast thou troubled us? the Lord shall trouble thee this day. And all Israel stoned him with stones, and burned them with fire, after they had stoned them with stones."  (Joshua 7:25)