This is an article from the public domain Easton's Bible Dictionary, originally published in 1897.
This article is written from a nineteenth century Christian viewpoint, and may not reflect modern opinions or recent discoveries in Biblical scholarship.
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Valley of Jezreel - lying on the northern side of the city, between the ridges of
Gilboa[?] and Moreh, an offshoot of Esdraelon[?], running east to the
Jordan (Josh. 17:16; Judg. 6:33; Hos. 1:5). It was the scene of
the signal victory gained by the Israelites under Gideon over
the Midianites, the Amalekites, and the "children of the east"
(Judg. 6:3). Two centuries after this the Israelites were here
defeated by the Philistines, and Saul and Jonathan, with the
flower of the army of Israel, fell (1 Sam. 31:1-6).
This name was in after ages extended to the whole of the plain
of Esdraelon[?] (q.v.). It was only this plain of Jezreel[?] and that
north of Lake Huleh that were then accessible to the chariots of
the Canaanites (comp. 2 Kings 9:21; 10:15).
From Easton's Bible Dictionary (1897)