Reference

Leviticus 13:37

But if the scall be in his sight at a stay, and that there is black hair grown up therein; the scall is healed, he is clean: and the priest shall pronounce him clean.
35

But if the scall spread much in the skin after his cleansing;

36

Then the priest shall look on him: and, behold, if the scall be spread in the skin, the priest shall not seek for yellow hair; he is unclean.

37

But if the scall be in his sight at a stay, and that there is black hair grown up therein; the scall is healed, he is clean: and the priest shall pronounce him clean.

38

If a man also or a woman have in the skin of their flesh bright spots, even white bright spots;

39

Then the priest shall look: and, behold, if the bright spots in the skin of their flesh be darkish white; it is a freckled spot that groweth in the skin; he is clean.

Counter-Arguments

The strongest case that this verse does not belong in this theme.

Symbolic / Spiritual Interpretation

This verse describes a physical skin condition and its resolution, using literal terms like "scall," "black hair," and "healed." There is no explicit or implied language within the verse itself that suggests a symbolic or spiritual meaning for "clean" or "unclean."

Pre-Law Clean/Unclean Distinction

This verse is found within the book of Leviticus, which is part of the Mosaic Law given at Sinai, and therefore describes a clean/unclean distinction *within* the Law, not prior to it. The text itself does not provide any indication that the described clean/unclean distinction existed before the giving of the Law.