For this Agar is mount Sinai in Arabia, and answereth to Jerusalem which now is, and is in bondage with her children.
Ver. 25. For this Agar is mount] The Arabians call Mount Sinai, Agar. Twice Hagar fled thither, Genesis 16:7; Genesis 16:14; Genesis 21:14, it being in her way home to Egypt. From her the Arabians are called Hagarenes, and since (for more honour' sake) Saracens, of Sarah, Hagar's mistress.
Answereth to Jerusalem] That is, to the Jewish synagogue, born to bondage, as Tiberius said of the Romans, that they were homines ad servitutem parati. men prepared for slavery.