This chapter contains a law for making a water for purification for sin, the ingredients of which are the ashes of a red heifer burnt, about which many things are observed, Nu 19:1-10; the use of the water made of them, to purify such as were unclean by the touch of a dead body, Nu 19:11-13; some rules are given, by which it might be known who were unclean on account of a dead body, Nu 19:14-16; the manner of purifying such persons, Nu 19:17-19; and the punishment of those that should neglect purification, Nu 19:20-22.