XVII. (84) Moreover the architect surrounded the tabernacle with very beautiful woven work of all kinds, employing work of hyacinth colour, and purple, and scarlet, and fine linen for the tapestry; for he caused to be wrought ten cloths, which in the sacred scriptures he has called curtains, of the kinds which I have just mentioned, every one of them being eight and twenty cubits in length, and extending four cubits in width, in order that the complete number of the decade, and also the number four, which is the essence of the decade, and also the number twenty-eight, which is likewise a perfect number, being equal to its parts; and also the number forty, the most prolific and productive of all numbers, in which number they say that man was fashioned in the workshop of nature. (85) Therefore the eight and twenty cubits of the curtains have this distribution: there are ten along the roof, for that is the width of the tabernacle, and the rest are placed along the sides, on each side nine, which are extended so as to cover and conceal the pillars, one cubit from the floor being left uncovered in order that the beautiful and holy looking embroidery might not be dragged. (86) And of the forty which are included in the calculation and made up of the width of the ten curtains, the length takes thirty, for such is the length of the tabernacle, and the chamber behind takes nine. And the remaining one is in the outer vestibule, that it may be the bond to unite the whole circumference. (87) And the outer vestibule is overshadowed by the veil; and the curtains themselves are nearly the same as veils, not only because they cover the roof and the walls, but also because they are woven and embroidered by the same figures, and with hyacinth colour, and purple, and scarlet, and fine linen. And the veil, and that thing, too, which was called the covering, was made of the same things. That which was within was placed along the five pillars, that the innermost shrine might be concealed; and that which was outside being placed along the five pillars, that no one of those who were not holy men might be able from any secret or distant place to behold the holy rites and ceremonies.