What Are the Moral Lessons in the "Pardoner's Tale"?

The Pardoner, who tells the tale, travels preaching against these vices through biblical tales. The tale itself is about a literal search for death personified. When three rioters go looking for death, their plan is subverted and then fulfilled by the desire to possess a pot of gold. Their greed ultimately causes each of the rioters to die, thus affirming the moral of the tale regarding greed.