Numbers 34:10

"And ye shall mark out your east border from Hazer-enan to Shepham; 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; and the border shall go down to the Jordan, and the goings out thereof shall be at the Salt Sea. This shall be your land according to the borders thereof round about."

It should be particularly noted that the tribes of Reuben, Gad, and the half tribe of Manasseh had requested their inheritance altogether outside the boundaries of the sacred land God promised Abraham, Isaac, and Jacob. According to the boundaries here, the eastern bank of the Jordan was the eastern boundary of the Land of Promise.

"Chinnereth ..." This is one of the several names of Lake Galilee. That body of water actually had four names: Gennesaret, Tiberius, Chinnereth, and Galilee, all four names sometimes being combined with "Lake" or with "Sea of," actually giving us eight combinations (all used in the Bible). The word "Chinnereth" means harp-shaped, taken from the shape of the lake.[6]

This small area of Canaan would have been fully ample for all Israel, if God's people had only stayed together and had driven out the pagan populations. Due to the selfishness of some of the tribes, however, God's plan was thwarted to some extent. The whole land of Canaan was about 150 miles long and about 50 miles wide, but it was an exceedingly productive, fertile area.