classes

The book of the courses of the luminaries of the heaven, the relations of each, according to their classes, their dominion and their seasons, according to their names and places of origin, and according to their months, which Uriel, the holy angel, who was with me, who is their guide, showed me; and he showed me all their laws exactly as they are, and how it is with regard to all the years of the world and unto eternity, till the new creation is accomplished which dureth till eternity.

keep Sabbath on the seventh day from all work. And all the angels of the presence, and all the angels of sanctification, these two great classes -He hath bidden us to keep the Sabbath with Him