The inside of the Tabernacle, the desert worship space of the Israelites, is 30 cubits long. (This is worked out from directions for various components, described in Exodus 26-27.) An inside covering is composed of ten panels of “twisted linen, and indigo and purple and crimson, with cherubim, designer’s work,” each measuring 28 cubits by 4 cubits (Alter’s translation; citation below). Eleven goat-hair panels of 30 cubits by 4 cubits create an additional covering over the whole construction. (Explicit instructions in Exodus 26:1 and 26:7).
The inside coverings are joined so “that the Tabernacle be one whole” (Exodus 26:6).
26:6) that the Tabernacle be one whole
This phrase leads Abraham ibn Ezra to muse over how unity in the greater world is constituted by an interlocking of constituent parts that become a transcendent whole, as in the unity of microcosm and macrocosm. One need not read this section homelitically, as he does, in order to see the power of summation of this particular phrase.
— Alter, Robert. The Five Books of Moses: A Translation with Commentary. (NY: Norton, 2004)