The extensive uncleanness that resulted from the plague of judgment (Num.16) and the burial of so many bodies at one time required a special ceremony of purification.

• 由于十六章中上帝降下的审判性瘟疫，以色列人在一时之间碰触这麽多死尸而造成为数极众的不洁净，需要一次特别的洁净礼。