(18) The twelve stones, set in four rows on the breast, describe for us the circle of the zodiac, in the four changes of the year. It was otherwise requisite that the law and the prophets should be placed beneath the Lord's head, because in both Testaments mention is made of the righteous. For were we to say that the apostles were at once prophets and righteous, we should say well, "since one and the self-same Holy Spirit works in all." And as the Lord is above the whole world, yea, above the world of thought, so the name engraven on the plate has been regarded to signify, above all rule and authority; and it was inscribed with reference both to the written commandments and the manifestation to sense.

(2) These twelve letters, he designed, formed, combined, weighed, and changed, and created with them the twelve divisions of the heavens (namely, the zodiacal constellations), the twelve months of the year, and the twelve important organs of the frame of man, namely the right and left hands, the right and left feet, two kidneys, the liver, the gall, the spleen, the intestines, the gullet, and the stomach.

(7) Now there are some who say that three hundred cubits are the symbol of the Lord's sign; and fifty, of hope and of the remission given at Pentecost; and thirty, or as in some, twelve, they say points out the preaching [of the Gospel]; because the LOrd preached in His thirtieth year; and the apostles were twelve. And the structure's terminating in a cubit is the symbol of the advancement of the righteous to oneness and to "the unity of the faith."