'Mount Sinai' in the Bible

“After forty years had passed, an angel appeared to him in the wilderness of Mount Sinai, in the flame of a burning thorn bush.

This is the one who was in the congregation in the wilderness together with the Angel who spoke to him on Mount Sinai, and who was with our fathers; and he received living oracles [divine words that still live] to be handed down to you.

Now these facts are about to be used [by me] as an allegory [that is, I will illustrate by using them]: for these women can represent two covenants: one [covenant originated] from Mount Sinai [where the Law was given] that bears children [destined] for slavery; she is Hagar.

Now Hagar is (represents) Mount Sinai in Arabia and she corresponds to the present Jerusalem, for she is in slavery with her children.

His voice shook the earth [at Mount Sinai] then, but now He has given a promise, saying, “Yet once more I will shake not only the earth, but also the [starry] heaven.”