Tafsiran Bilangan 34:8: Rashi & Siftei Chakhamim

מהר ההר FROM MOUNT HOR you shall turn about and go along the northern boundary towards the eastern side and you will arrive at the “Entrance to Hamath”, which is Antioch.

For [that dimension] ends there. Meaning that from Tzedad until Chatzar Einan the border continues southward, from the west to east, resulting in the land of Israel narrowing while the border broadens.

תוצאות הגבול means, THE END OF THE BOUNDARY. In every passage where it is said "the end of the boundary”, either the boundary ends there entirely, not passing further on at all (cf. Rashi on v. 5), or from there it spreads and widens, projecting from the straight line backwards to extend itself further on in a more slanting direction than the first widening. And relative to the measurement of the first breadth it calls it תוצאות (the goings forth, the endings), because there that measurement ends.