Here’s a description of Cosmas’ schema.
“The drawings depict the Cosmos, the Tabernacle, and the Ark of the Covenant using a schema of a rectangular structure crowned with an arch and a line separating the rectangle from the half-circle above it (fig. 1). In other diagrams in the book the seven-branched menorah symbolizes the celestial bodies, the showbread table represents the produce of the Earth, and the Ark of the Covenant with its cherubim in the Holy of Holies symbolizes the upper Heavens.” [1]
The author goes on to describe how Cosmas’ schema is similar to the existing Jewish traditions.
“Surprisingly, a similar schema of the Tabernacle can also be found in Jewish art from earlier periods. We find a visual pictogram of the Tabernacle/Temple running through Jewish artifacts for centuries—from the Bar Kochba coins dated from 132 to 135 CE (fig. 2) to the third-century Dura-Europos synagogue (fig. 3) to third- and fourth-century Jewish funerary art, and to fourth- to seventh-century synagogue art, as well as examples from later periods, such as depictions in a fourteenth-century illustrated Sephardi haggadah.” [2]
This understanding of creation as cosmic temple theology was widespread throughout Byzantine Christianity.
“Similar ideas expressed visually and verbally concerning the link between the Tabernacle and Creation are also found in such other Byzantine Christian works as the Octateuchs, which date from the eleventh to the thirteenth century. The Octateuchs, a collection of eight biblical books of the Septuagint, consists of the five books of Moses, the “Pentateuch” generally known to both Hellenized Jews and Greek-speaking Christians as the Law (Torah), Joshua and Judges, the two books that continue the narrative of Deuteronomy, and the short Book of Ruth, which is set in the period of the Judges (Ruth 1:1).” [3]
The author goes on to point out the reliance of Christian texts on the existing Jewish tradition of the creation as cosmic temple.
“Interestingly, the unique exegetical method found in these Byzantine Christian works seems to rely heavily on early Jewish sources, especially in its description of the universe and the way it was formed in the act of Creation.” [4]
There is masses of literature describing cosmic temple theology from texts in the pre-Christian era right through to the late Byzantine. It’s all over the place (including the New Testament of course, in particular Hebrews and Revelation). Josephus gave it a nod as well.
"…for if anyone do without prejudice, and with judgment, look upon these things, he will find they were every one made in way of imitation and representation of the universe. When Moses distinguished the tabernacle into three parts,c and allowed two of them to the priests, as a place accessible and common, he denoted the land and the sea, these being of general access to all; but he set apart the third division for God, because heaven is inaccessible to men.
And when he ordered twelve loaves to be set on the table, he denoted the year, as distinguished into so many months. By branching out the candlestick into seventy parts, he secretly intimated the Decani, or seventy divisions of the planets; and as to the seven lamps upon the candlesticks, they referred to the course of the planets, of which that is the number.
The veils, too, which were composed of four things, they declared the four elements; for the fine linen was proper to signify the earth, because the flax grows out of the earth; the purple signified the sea, because that color is dyed by the blood of a sea shell fish; the blue is fit to signify the air; and the scarlet will naturally be an indication of fire." [5]
[1] Shulamith Laderman, Images of Cosmology in Jewish and Byzantine Art: God’s Blueprint of Creation, Jewish and Christian Perspectives Series 26 (Boston: Brill, 2013), 3.
[2] Shulamith Laderman, Images of Cosmology in Jewish and Byzantine Art: God’s Blueprint of Creation, Jewish and Christian Perspectives Series 26 (Boston: Brill, 2013), 3.
[3] Shulamith Laderman, Images of Cosmology in Jewish and Byzantine Art: God’s Blueprint of Creation, Jewish and Christian Perspectives Series 26 (Boston: Brill, 2013), 4.
[4] Shulamith Laderman, Images of Cosmology in Jewish and Byzantine Art: God’s Blueprint of Creation, Jewish and Christian Perspectives Series 26 (Boston: Brill, 2013), 4.
[5] Antiquities 3.180–183, Flavius Josephus and William Whiston, The Works of Josephus: Complete and Unabridged (Peabody: Hendrickson, 1987), 90.