'Mount' in the Bible

"But at the end of forty years there appeared to him in the Desert of Mount Sinai an angel in the middle of a flame of fire in a bush.

This is he who was among the Congregation in the Desert, together with the angel who spoke to him on Mount Sinai and with our forefathers, who received ever-living utterances to hand on to us.

He further told them to provide horses to mount Paul on, so as to bring him safely to Felix the Governor.