John Gill Commentary Joshua 12:3

"and the Arabah unto the sea of Chinneroth, eastward, and unto the sea of the Arabah, even the Salt Sea, eastward, the way to Beth-jeshimoth; and on the south, under the slopes of Pisgah:" — Joshua 12:3 (ASV)

And from the plain
Or rather, "and the plain", the plains of Moab, which, before possessed by the Israelites, belonged to the kingdom of Sihon; and the plains of Jordan, which reached

to the sea of Cinneroth on the east ;
the same with the lake of Gennesaret, and sea of Tiberias, mentioned in the New Testament, (Matthew 14:34) (Mark 6:53) (Luke 5:1) (John 6:1) (21:1) :

and unto the sea of the plain ;
where stood the cities of the plain, Sodom, Gomorrah

[even] the salt sea on the east ;
the same with the dead sea, into which the plain the above cities stood on was converted:

the way to Bethjeshimoth ;
which was a place in the plains of Moab, (Numbers 33:49) ;

and from the south under Ashdothpisgah ;
or the springs of Pisgah, which flowed from the mount of that name, (Deuteronomy 3:17) (4:49) .