Also the Levites which were the singers, all of them of Asaph, of Heman, of Jeduthun, with their sons and their brethren, being arrayed in white linen, having cymbals and lyres and harps, stood at the east end of the altar, and with them a hundred and twenty priests sounding with trumpets:)
I beheld till the thrones were set in place, and the Ancient of days did sit, whose garment was white as snow, and the hair of his head like the pure wool: his throne was like the fiery flame, and its wheels as burning fire.
And I said unto him, Sir, you know. And he said to me, These are they who came out of the great tribulation, and have washed their robes, and made them white in the blood of the Lamb.