The identification of this peak with the biblical Mount Sinai dates to the early Christian period and is the reason the monastery is where it is. Other candidate mountains have been proposed; this is the one with fifteen hundred years of pilgrimage attached.
The mountain's Arabic name is Jebel Musa — the Mountain of Moses. By the fourth century monks and hermits had settled the valleys around it, and the monastery at its foot fixed the tradition in stone. Whatever position one takes on the geography, the unbroken centuries of pilgrimage are themselves the historical fact.
It is not actually the highest peak in the range — neighbouring Mount Catherine is Egypt's highest at around 2,600 metres — but this is the one with the tradition, the routes and the sunrise congregation.
The Steps of Repentance — the steeper of the two routes, said to number around 3,750 — were reportedly cut by a single monk as an act of penance.
The mountain has been a destination for Jewish, Christian and Muslim pilgrims, and a small chapel and a mosque stand at the summit.