Numbers 19:17-19

New Revised Standard Version, Anglicised

¹⁷ For the unclean they shall take some ashes of the burnt purification-offering, and running water shall be added in a vessel; ¹⁸ then a clean person shall take hyssop, dip it in the water, and sprinkle it on the tent, on all the furnishings, on the persons who were there, and on whoever touched the bone, the slain, the corpse, or the grave. ¹⁹ The clean person shall sprinkle the unclean ones on the third day and on the seventh day, thus purifying them on the seventh day. Then they shall wash their clothes and bathe themselves in water, and at evening they shall be clean.