Genesis 10:19; Genesis 20:1; Genesis 26:1; Genesis 26:6

19 And the territory of the Canaanites extended from Sidon in the direction of Gerar as far as Gaza, and in the direction of Sodom, Gomorrah, Admah, and Zeboiim, as far as Lasha.


Abraham and Abimelech

20 From there Abraham journeyed toward the territory of the Negeb and lived between pKadesh and Shur; and he qsojourned in rGerar.


God's Promise to Isaac

26 Now there was a famine in the land, besides uthe former famine that was in the days of Abraham. And Isaac went to Gerar to vAbimelech king of the wPhilistines.


Isaac and Abimelech

So Isaac settled in Gerar.