וְזָרַקְתִּ֧י עֲלֵיכֶ֛ם מַ֥יִם טְהוֹרִ֖ים וּטְהַרְתֶּ֑ם מִכֹּ֧ל טֻמְאוֹתֵיכֶ֛ם וּמִכָּל־גִּלּ֥וּלֵיכֶ֖ם אֲטַהֵ֥ר אֶתְכֶֽם׃
我必將潔淨的水灑在你們身上，你們就潔淨了；我必潔淨你們，使你們脫離一切的不潔，脫離一切的偶像。
Rashi
clean water I will grant you atonement and remove your uncleanliness by sprinkling purification water, which removes [even the highest degree of defilement,] the defilement caused by a corpse.