Passage
For I will clense their blood, that I haue not clensed, and the Lord will dwell in Zion.
For I will clense their blood, that I haue not clensed, and the Lord will dwell in Zion.
Joel 3:19 Egypt shalbe waste, and Edom shall be a desolate wildernesse, for the iniuries of the childre of Iudah, because they haue shed innocent blood in their land.
Joel 3:20 But Iudah shall dwell for euer, and Ierusalem from generation to generation.
Joel 3:21 For I will clense their blood, that I haue not clensed, and the Lord will dwell in Zion.
The verse centers on "clense", "blood", "haue", "clensed", "lord", "dwell", and "zion". It is saying that the verse draws attention to "clense" and "blood", so its meaning should be read from those terms before moving to application.
The prior verse says "But Iudah shall dwell for euer and...", giving immediate footing for "clense" and "blood". In Joel context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "clense" and "blood" with trust shaped by these words, not by a vague optimism outside the passage.