ISB ~ Revelation 15 v8

filled with smoke:Entrance into the heavenly throne room is cut off by the glorious cloud of God’s presence.

• This recalls how the fiery cloud of the Lord filled the Mosaic Tabernacle (Ex 40:34-35) and the Solomonic Temple (1 Kings 8:10-11), making entrance temporarily impossible. Isaiah experienced this firsthand when he saw the Lord enthroned in the Temple (Is 6:1-4).