Genesis 21:34

Abraham : a son of Terah; the father of Isaac; ancestor of the Jewish nation.,the son of Terah of Shem

Philistines : a sea people coming from Crete in 1200BC to the coast of Canaan
(33° 33´, 35° 21´)

Genesis 20:1

Abraham : a son of Terah; the father of Isaac; ancestor of the Jewish nation.,the son of Terah of Shem

Gerar : a town of Judah 15 km SE of Gaza
(31° 23´, 34° 33´)

Kadesh : an oasis 100 km south of Gaza & 120 km NNW of Ezion-Geber, where Israel made an encampment
(30° 41´, 34° 29´); (34° 33´, 36° 31´)

Negeb : geographical region: South country
(30° 17´, 34° 12´)

Shur : the wilderness region in the NW part of the Sinai isthmus
(30° 14´, 33° 14´)