מדרש על משלי 4:24

Another interpretation: The precepts of the LORD are straightforward (Psalm 19:9) — Taught Ḥizkiyah son of Ḥiyyah, these are words of Torah, which are a crown for the head, as it is said For a graceful wreath are they on your head, a necklace on your throat. (Proverbs 1:9). A remedy for the heart — making the heart rejoice. A salve for the eyes — The commandment of the LORD is clear, illuminating the eyes. An elixir for plague — Cure for your gut it will be (Proverbs 3:8). And a potion for the intestines — and a potion for your innards. (ibid.) And the number of swallowings is 248 organs — and to all his flesh it heals. (Proverbs 4:24).