Isaiah 4:3-6

3Whoever remains in Zion and whoever is left in Jerusalem will be called holy  — all in Jerusalem written in the book of life  —

4when the Lord has washed away the filth of the daughters of Zion and cleansed the bloodguilt from the heart of Jerusalem by a spirit of judgment and a spirit of burning.

5Then the Lord will create a cloud of smoke by day and a glowing flame of fire by night over the entire site of Mount Zion and over its assemblies. For there will be a canopy over all the glory,

6and there will be a shelter for shade from heat by day and a refuge and shelter from storm and rain.