Why five curtains on one side and six on the other? The Torah simply gives the numbers (Exodus 36:16). But Targum Pseudo-Jonathan offers a staggering interpretation: he joined five curtains together, corresponding with the five books of the law; and six curtains together, corresponding with the six orders of the Mishna.
This single gloss reframes the entire Tabernacle. The cloth ceiling stretched over the sanctuary was not decorative. It was a curriculum. On one side, the Chumash — the Five Books of Moses. On the other side, the Shisha Sidrei Mishnah — the six orders of the Oral Torah that would be codified by Rabbi Judah the Prince around 200 CE.
The Targum is doing something extraordinary in theology of time. It is saying that the Mishnah, finalized more than a thousand years after the Tabernacle was built, was already woven into the Mishkan's roof. The Oral Torah was not an addition tacked onto the Written Torah. It was present from the beginning, implicit in the architecture, visible in the curtains.
The five-plus-six ratio is also geometrically significant. Eleven curtains total. The written Torah is smaller than the oral; the oral Torah wraps the written. The rabbis of the Talmud said that the Written Torah is the seed and the Oral Torah is the tree — both necessary, both divine, both given at Sinai in different forms.
The Targum's homily means that when Bezalel stretched the tent cloth across the Tabernacle poles, he was, without fully knowing it, draping the entire future of Jewish learning over the place where God would dwell.
The takeaway: in Judaism, the study of Torah is literally structural. The roof over God's dwelling was always made of both Torahs. A Jewish life without both is a tent without half its cover.