Achans treasures.

Josh 7:1
But the children of Israel committed a trespass in the accursed thing: for Achan, the son of Carmi, the son of Zabdi, the son of Zerah, of the tribe of Judah, took of the accursed thing: and the anger of the Lord was kindled against the children of Israel.
    Josh 7:10-13
 And the Lord said unto Joshua, Get thee up; wherefore liest thou thus upon thy face?
11 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.
12 Therefore the children of Israel could not stand before their enemies, but turned their backs before their enemies, because they were accursed: neither will I be with you any more, except ye destroy the accursed from among you.
13 Up, sanctify the people, and say, Sanctify yourselves against to morrow: for thus saith the Lord God of Israel, There is an accursed thing in the midst of thee, O Israel: thou canst not stand before thine enemies, until ye take away the accursed thing from among you.
     Josh 7:19-21
 And 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.
   A powerful lesson to be learned here not only for the church but for our individual lives! The Lord had given simple yet explicit instructions, defeat the enemy and destroy the spoils! But because of one family who were ultimately all involved gathered up a FEW things all would be effected!
  A little leaven, leaveneth the WHOLE lump.

  And now because of there disobedience the opposite began to happen! Because Achan gathered the spoils the enemy would now defeat them! We sometimes try to hold on to things in our lives that the Lord is wanting us to be rid of and this is what will continue to affect our relationship with Him! We attend church, sit in bible studies and even attend prayer meetings while at home hidden amongst the stuff, even hidden in our hearts the spoils or the treasures of past life we have yet to destroy!

  God had given a commandment and a promise and followed up with this, Num 32:23
 But if ye will not do so, behold, ye have sinned against the Lord: and be sure your sin will find you out.

  This isn't a scare tactic or the Lord threatening destruction, what we have to realize is, is that sin is what keeps us from the blessings an more importantly the presence of the Lord! 2 Peter 3:9
not willing that any should perish, but that all should come to repentance.
  Achans treasures became his demise. Treasures that he had to keep hidden away. Treasures that he would never be able to enjoy! Treasures that would constantly remind him of the wrong that he had done! Every night that Achan would go to bed he would lie down knowing that these "treasures" were buried beneath him!

 Read Matt. 6:19-21