Deuteronomy 21:22-23

22A person may do an evil thing so that you punish him with death. If you have hung his dead body on a tree,

23you must not leave it there during the night. Be careful to bury it on the same day that he died. If someone's body is hanging on a tree, it shows that God has cursed him. So do not leave it there. The Lord your God is giving the land to you so that it belongs to you. So do not let evil things spoil your land.