Galatia 4:22-24

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

Hagar : wife of Abraham used figuratively of her son Ishmael and his descendants,Sarah's Egyptian maid

Sinai : a mountain located either between the gulfs of Suez and Akaba or in Arabia, east of Akaba,a mountain; the place where the law was given to Moses
(28° 32´, 33° 58´); (28° 32´, 33° 58´)

Galatia 4:28

Ishak : the only son of Abraham and Sarah; father of Jacob and Esau