Tsok, among the Talmudists, is any more craggy and lofty rock. Hence is that, "she went up to the top of the rocks and fell." Where the Gloss writes, "Tsokin are high and craggy mountains."
The first entrance into the desert was three miles from Jerusalem, and that place was called 'Beth Chadudo.' The Misna of Babylon writes thus of it; "They say to the high priest, The goat is now come into the wilderness." But whence knew they, that he was now come into the wilderness? They set up high stones; and, standing on them, they shook handkerchiefs; and hence they knew that the goat was now got into the wilderness. R. Judah saith, 'Was not this a great sign to them?' From Jerusalem to Beth Chadudo were three miles. They went forward the space of a mile, and went back the space of a mile, and they tarried the space of a mile: and so they knew that the goat was now come to the wilderness.
The Jerusalem Misna thus: "R. Judah saith, Was not this a great sign to them? From Jerusalem to Beth-horon were three miles. They went forward the space of a mile," &c.
From these things compared, it is no improbable conjecture, that the goat was sent out towards Beth-horon, which both was twelve miles distant from Jerusalem, and had rough and very craggy rocks near it: and that the sense of the Gemarists was this, -- In the way to Beth-horon, were three miles to the first verge of the wilderness, -- and the name of the place was Beth Chadudo.