Achan did not fully trust the word of the Lord to provide for his people, which is why he took of the accursed thing. Had he waited, after the fall of Jericho, Israel took the spoil of the land, not just one city. He traded his inheritance for a wedge of gold and a garment and a few pieces of silver. This word of God is quick and powerful and sharp. Don't let Satan rob you as he did Achan. Convicting.