Defilement: Things Liable to Ceremonial: The Land

Even the land has become defiled, so I am punishing it for its sin, and the land will vomit out its inhabitants.

…you must not leave the body on the tree overnight, but you must be sure to bury him that day, because anyone who is hung on a tree is under God’s curse. You must not defile the land that the LORD your God is giving you as an inheritance.