¹The 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, shewed me; and he shewed me all their laws exactly as they are, and how it is with regard to all the years of the world 2 and unto eternity, till the new creation is accomplished which dureth till eternity. And this is the first law of the luminaries: the luminary the Sun has its rising in the eastern portals of the heaven, 3 and its setting in the western portals of the heaven. And I saw six portals in which the sun riseth, and six portals in which the sun sets and the moon riseth and sets in these portals, and the leaders of the stars and those whom they lead: six in the east and six in the west, and all following each other 4 in accurately corresponding order: also many windows to the right and left of these portals. And first there goeth forth the great luminary, named the Sun, and his circumference is like the 5 circumference of the heaven, and he is quite filled with illuminating and heating fire. The chariot on which he ascends, the wind drives, and the sun goeth down from the heaven and returns through the north that reach the east, and is so guided that he cometh to the appropriate (lit. ' that ') portal and 6 shines in the face of the heaven. In this way he riseth in the first month in the great portal, which 7 is the fourth [those six portals in the cast]. And in that fourth portal from which the sun riseth in the first month are twelve window-openings, from which proceed a flame when they are opened in 8 their season. When the sun riseth in the heaven, he cometh forth through that fourth portal thirty, 9 mornings in succession, and sets accurately in the fourth portal in the west of the heaven. And during this period the day becomes daily longer and the night nightly shorter to the thirtieth 10 morning. On that day the day is longer than the night by a ninth part, and the day amounts exactly to ten parts and the night to eight parts. And the sun riseth from that fourth portal, and sets in the fourth and returns to the fifth portal of the east thirty mornings, and riseth from it and sets in the fifth 12 portal. And then the day becomes longer by two parts and amounts to eleven parts, and the night 13 becomes shorter and amounts to seven parts. And it returns to the east and enters into the sixth 14 portal, and riseth and sets in the sixth portal one-and-thirty mornings on account of its sign. On that day the day becomes longer than the night, and the day becomes double the night, and the day 15 becomes twelve parts, and the night is shortened and becomes six parts. And the sun mounts up to make the day shorter and the night longer, and the sun returns to the east and enters into the 16 sixth portal, and riseth from it and sets thirty mornings. And when thirty mornings are accomplished, 17 the day decreases by exactly one part, and becomes eleven parts, and the night seven. And the sun goeth forth from that sixth portal in the west, and goeth to the east and riseth in the fifth portal for 18 thirty mornings, and sets in the west again in the fifth western portal. On that day the day decreases by two parts, and amounts to ten parts and the night to eight parts. And the sun goeth forth from that fifth portal and sets in the fifth portal of the west, and riseth in the fourth portal for one- 20 and-thirty mornings on account of its sign, and sets in the west. On that day the day is equalized with the night, [and becomes of equal length], and the night amounts to nine parts and the day to 21 nine parts. And the sun riseth from that portal and sets in the west, and returns to the east and riseth 22 thirty mornings in the third portal and sets in the west in the third portal. And on that day the night becomes longer than the day, and night becomes longer than night, and day shorter than day till the thirtieth morning, and the night amounts exactly to ten parts and the day to eight 23 parts. And the sun riseth from that third portal and sets in the third portal in the west and returns to the east, and for thirty mornings riseth 24 in the second portal in the east, and in like manner sets in the second portal in the west of the heaven. And on that day the night amounts to eleven 25 parts and the day to seven parts. And the sun riseth on that day from that second portal and sets in the west in the second portal, and returns to the east into the first portal for one-and-thirty 26 mornings, and sets in the first portal in the west of the heaven. And on that day the night becomes longer and amounts to the double of the day: and the night amounts exactly to twelve parts and 27 the day to six. And the sun has (therewith) traversed the divisions of his orbit and turns again on those divisions of his orbit, and enters that portal thirty mornings and sets also in the west 28 opposite to it. And on that night has the night decreased in length by a ninth part, and the night 29 has become eleven parts and the day seven parts. And the sun has returned and entered into the second portal in the east, and returns on those his divisions of his orbit for thirty mornings, rising 30 and setting. And on that day the night decreases in length, and the night amounts to ten parts 31 and the day to eight. And on that day the sun riseth from that portal, and sets in the west, and returns to the east, and riseth in the third portal for one-and-thirty mornings, and sets in the west of the heaven.

²On that day the night decreases and amounts to nine parts, and the day to nine parts, and the night 33 is equal to the day and the year is exactly as to its days three hundred and sixty-four. And the length of the day and of the night, and the shortness of the day and of the night arise-through the course 34 of the sun these distinctions are made (lit. ' they are separated '). So it cometh that its course becomes 35 daily longer, and its course nightly shorter. And this is the law and the course of the sun, and his return as often as he returns sixty times and riseth, i.e. the great luminary which is named the sun, for ever and ever. And that which (thus) riseth is the great luminary, and is so named according to 37 its appearance, according as the Lord commanded. As he riseth, so he sets and decreases not, and rests not, but runs day and night, and his light is sevenfold brighter than that of the moon; but as regards size they are both equal.