Joel 3:21

cleanse . . . cleansed = clear . . . cleared. This could be done only by avenging it; for God will "by no means clear the guilty" (Exodus 34:7 . Numbers 14:18 ); and Egypt, Edom, &c., were guilty (Joel 3:19 ), and are not to be cleansed", but punished for shedding Judah's blood. The Hebrew nakah is not used of cleansing, naturally or ceremonially. Not the same word as Isaiah 4:4 . The Septuagint and Syriac render it "make inquisition for" in 2 Kings 9:7 ; and evidently read nakam = to avenge (akin to nakah). This would be a vivid reference to Pent in Deuteronomy 32:42 , Deuteronomy 32:43 , the parallel event. Compare Revelation 6:10 , Revelation 6:11 .

have not = had not.

dwelleth in Zion = is about to make His dwelling in Zion. Thus ending like Ezekiel (Ezekiel 48:35 ), Jehovah Shammah. Compare Joel 3:17 . Psalms 87:3 .Revelation 21:3 .