Counted: 248 positive plus 365 negative commandments = 613 (taryag). Computed: torah (תורה) = 611, plus the two commandments spoken directly at Sinai.
Six hundred and thirteen is the number of the commandments, and the tradition derives it twice over: by the arithmetic of the body and the year, and by the gematria of Torah plus the two commandments the people heard from God themselves. The number is the shape of the law — a whole that covers a person and a calendar — and the prohibition on adding to it or taking from it is what makes the number itself a doctrine rather than a tally.
Nothing in the library points at this entry yet.