'Mountain' in the Bible

And at the sounding of the second angel, it was as if a great mountain burning with fire was sent into the sea: and a third part of the sea became blood,

And I saw the Lamb on the mountain of Zion, and with him a hundred and forty-four thousand, marked on their brows with his name and the name of his Father.

And he took me away in the Spirit to a great and high mountain, and let me see the holy town Jerusalem, coming down out of heaven from God,