Deuteronomy 21:22-23 - Display Of Executed People
22 "And if a man has committed a crime punishable by death and he is put to death, and you hang him on a tree, 23 his body shall not remain all night on the tree, but you shall bury him the same day, for a hanged man is cursed by God. You shall not defile your land that the LORD your God is giving you for an inheritance.