8. cleanse—(Eze 36:25; Zec 13:1; Heb 9:13, 14). Alluding to the legal rites of purification.
all their iniquity … all their iniquities—both the principle of sin within, and its outward manifestations in acts. The repetition is in order that the Jews may consider how great is the grace of God in not merely pardoning (as to the punishment), but also cleansing them (as to the pollution of guilt); not merely one iniquity, but all (Mic 7:18).