Charles Ellicott Commentary Numbers 34:11

"and the border shall go down from Shepham to Riblah, on the east side of Ain; and the border shall go down, and shall reach unto the side of the sea of Chinnereth eastward;" — Numbers 34:11 (ASV)

Riblah, on the east side of Ain.— Ain (Heb., a fountain) is supposed to be the great fountain of Neba Anjar at the foot of Antilibanus, in which case Riblah must be distinguished from the Riblah in the land of Hamath, which is mentioned in 2 Kings 23:33 and Jeremiah 39:9. From this point, the boundary went further southward by the side (Heb., shoulder) of the Lake of Chinnereth, or Sea of Galilee, from where the eastern boundary was the Jordan down to the Dead Sea. This was to be the land of the Israelites, according to its borders on every side.

The Sea of Chinnereth.— Chinnereth, or Cinnereth, appears to have been the name of a district, and also of a town. The name is supposed to be derived from kinnor, a “harp.” In later times the city was called Genusar, from which came the name Gennesareth, as we find it in the Gospels.