and the Levites, singers to all of them, to Asaph, to Heman, to Jeduthun, and to their sons and to their brothers, clothed in fine linen, with cymbals, and with harps and lyres, were standing on the east of the altar, and with them a hundred and twenty priests blowing with trumpets.
I was seeing until the thrones were cast down, and the Ancient of Days sat, whose robe was white as snow and the hair of His head like pure wool. His throne was like flames of fire, its wheels like burning fire.
And I said to him, Sir, you know. And he said to me, These are the ones coming out of the great tribulation; and they washed their robes and whitened them in the blood of the Lamb.