Ezekiel 39:12
Seven months long shall the house of Israel be burying of them, that they may cleanse the land.
Deuteronomy 21:23
let not his body remain all night upon the tree, but bury him the same day. For the curse of God is on him that is hanged. Defile not thy land therefore, which the LORD thy God giveth thee to inherit.
Ezekiel 39:14
They shall ordain men also to be dead buriers, ever going through the land, and appoint them certain places to bury those in which remain upon the field - that the land may be cleansed. From end to end shall they seek; and that seven months long.
Ezekiel 39:16
And the name of the city shall be called, Hamonah. Thus shall they make the land clean.'
Numbers 19:16
And whosoever toucheth one that is slain with a sword in the fields, or a dead person, or a bone of a dead man, or a grave: shall be unclean seven days.