Judges 9:18

Abimelech : priest (Eli Ithamar) of Nob, whom Saul killed; Ahimelech I,a priest, Ahimelech II; son of Abiathar son of Ahimelech I,a man who was part of David's fugitive band; a Hittite

Shechem : member of the Shechem Clan and/or resident of Shechem

Genesis 20:2

Abimelech : priest (Eli Ithamar) of Nob, whom Saul killed; Ahimelech I,a priest, Ahimelech II; son of Abiathar son of Ahimelech I,a man who was part of David's fugitive band; a Hittite

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´)

Sarah : the wife of Abraham and the mother of Isaac,daughter of Terah; wife of Abraham