Ezekiel 39:14

And they shall sever out men of continual employment, delegating them for just this task, passing through the land to bury with the passengers those that remain upon the face of the earth, some of the men making the search for dead bodies and others attending to their burial, to cleanse it, so that the land would no longer he polluted; after the end of seven months shall they search, to complete the work begun by the entire multitude of people.