4 The Lord will wash away the filth of the women of Zion; he will cleanse the bloodstains from Jerusalem by a spirita of judgment and a spiritb of fire.

Read Isaiah 4:4 Using Other Translations

When the Lord shall have washed away the filth of the daughters of Zion, and shall have purged the blood of Jerusalem from the midst thereof by the spirit of judgment, and by the spirit of burning.
when the Lord shall have washed away the filth of the daughters of Zion and cleansed the bloodstains of Jerusalem from its midst by a spirit of judgment and by a spirit of burning.
The Lord will wash the filth from beautiful Zion and cleanse Jerusalem of its bloodstains with the hot breath of fiery judgment.