orbit for thirty mornings, rising and setting. 30. And on that day the night decreases in length, and the night amounts to ten parts and the day to eight. 31. And on that day the sun rises from that portal, and sets in the west, and returns to the east, and rises in the third portal for one and thirty mornings, and sets in the west of the heaven. 32. On that day the night decreases and amounts to nine parts, and the day to nine parts, and the night is equal to the day and the year is exactly as to its days three hundred and sixty-four. 33. And the length of the day and of the night, and the shortness of the day and of the night arise—through the course of the sun these distinctions are made (lit. ‘they are separated’). 34. So it comes that its course becomes daily longer, and its course nightly shorter. 35. And this is the law and the course of the sun, and his return as often as he returns sixty times and rises, _i. e._ the great luminary which is named the Sun, for ever and ever. 36. And that which (thus) rises is the great luminary, and is so named according to its appearance, according as the Lord commanded. 37. As he rises, 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. LXXIII. _The Moon and its Phases._ LXXIII. 1. And after this law I saw another law dealing with the smaller luminary, which is named the Moon. 2. And her circumference is like the circumference of the heaven, and her chariot in which she rides is driven by the wind, and light is given to her in (definite) measure. 3. And her rising and setting changes every month: and her days are like the days of the sun, and when her light is uniform (_i. e._ full) it amounts to the seventh part of the light of the sun. 4. And thus she rises. And her first phase in the east comes forth on the thirtieth morning: and on that day she becomes visible, and constitutes for you the first phase of the moon on the thirtieth day together with the sun in the portal where the sun rises. 5. And the one half of her goes forth by a seventh part, and her whole circumference is empty, without light, with the exception of one-seventh part of it, (and) the fourteenth part of her light. 6. And when she receives one-seventh part of the half of her light, her light amounts to one-seventh part and the half thereof. 7. And she sets with the sun, and when the sun rises the moon rises with him and receives the half of one part of light, and in that night in the beginning of her morning [in the commencement of the lunar day] the moon sets with the sun, and is invisible that night with the fourteen parts and the half of one of them. 8. And she rises on that day with exactly a seventh part, and comes forth and recedes from the rising of the sun, and in her remaining days she becomes bright in the (remaining) thirteen parts.