Albert Barnes Commentary Numbers 34:7-9

"And this shall be your north border: from the great sea ye shall mark out for you mount Hor; from mount Hor ye shall mark out unto the entrance of Hamath; and the goings out of the border shall be at Zedad; and the border shall go forth to Ziphron, and the goings out thereof shall be at Hazar-enan: this shall be your north border." — Numbers 34:7-9 (ASV)

The northern border. On “Mount Hor,” compare the note on Numbers 20:22. Here the name denotes the whole western crest of Mount Lebanon, 80 miles in length, commencing east of Sidon, and terminating with the point immediately above the entrance of Hamath .

The extreme point in the northern border of the land was the city of Zedad (Sadad), about 30 miles east of the entrance of Hamath. Hence, the border turned back southwestward to Ziphron (Zifran), about 40 miles northeast of Damascus. Hazar-enan may be conjecturally identified with Ayun ed-Dara, a fountain situated in the very heart of the great central chain of Antilibanus.