Exodus 19:2

Israel : a citizen of Israel.,a member of the nation of Israel

Rephidim : an encampment where water came out of a rock for Israel
(28° 43´, 33° 50´)

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´)