Defilement: Things Liable to Ceremonial: The Land
Source: TTT
Leviticus 18:25
Even the land has become defiled, so I am punishing it for its sin, and the land will vomit out its inhabitants.
Deuteronomy 21:23
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.