1 Enoch 23
1From thence I went to another place to the west of the ends of the earth. 2And I saw a burning fire which ran without resting, and paused not from its course day or night but (ran) regularly. 3And I asked saying: ‘What is this which rests not?’ 4Then Raguel, one of the holy angels who was with me, answered me and said unto me: ‘This course of fire which thou hast seen is the fire in the west which persecutes all the luminaries of heaven.’