All the Levites who were musicians, including Asaph, Heman, Jeduthun, and their sons and relatives, wore linen. They played cymbals and stringed instruments as they stood east of the altar. They were accompanied by 120 priests who blew trumpets.
“While I was watching, thrones were set up, and the Ancient of Days took his seat. His attire was white like snow; the hair of his head was like lamb’s wool. His throne was ablaze with fire and its wheels were all aflame.
So I said to him, “My lord, you know the answer.” Then he said to me, “These are the ones who have come out of the great tribulation. They have washed their robes and made them white in the blood of the Lamb!