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Gerar

Meaning: a region; lodging-place

a very ancient town and district in the south border of Israel, which was ruled over by a king named Abimelech (Gen. 10:19; 20:1-2)

Abraham sojourned here, and perhaps Isaac was born in this place. Both of these patriarchs were guilty of the sin of here denying their wives, and both of them entered into a treaty with the king before they departed to Beersheba (21:23-34; 26). It seems to have been a rich pastoral country (2 Chr. 14:12-18). Isaac here reaped an hundred-fold, and was blessed of God (Gen. 26:12).

The “valley of Gerar” (Gen. 26:17) was probably the modern Wady el-Jerdr.