WNT(i)
13 Then, addressing me, one of the Elders said, "Who are these people clothed in the long white robes? And where have they come from?"
14 "My lord, you know," I replied. "They are those," he said, "who have just passed through the great distress, and have washed their robes and made them white in the blood of the Lamb.
15 For this reason they stand before the very throne of God, and render Him service, day after day and night after night, in His sanctuary, and He who is sitting upon the throne will shelter them in His tent.