Book of Enoch Chapter 17: the river of fire
And they took and brought me to a place in which those who were there were like flaming fire,
and, when they wished, they appeared as men. And they brought me to the place of darkness, and to a mountain the point of whose summit reached to heaven. And I saw the places of the luminaries and the treasuries of the stars and of the thunder and in the uttermost depths, where were
a fiery bow and arrows and their quiver, and a fiery sword and all the lightnings. And they took
me to the living waters, and to the fire of the west, which receives every setting of the sun. And I came to a river of fire in which the fire flows like water and discharges itself into the great sea towards
the west. I saw the great rivers and came to the great river and to the great darkness, and went
to the place where no flesh walks. I saw the mountains of the darkness of winter and the place
whence all the waters of the deep flow. I saw the mouths of all the rivers of the earth and the mouth of the deep.