'Mountain' in the Bible

Therefore, on account of youZion shall be plowed like a field,Jerusalem shall become a heap of ruins,And the mountain of the house [of the Lord] shall become like a densely wooded hill.

But it shall come about in the last daysThat the mountain of the house of the LordShall be established as the highest and chief of the mountains;It shall be above the hills,And peoples shall flow [like a river] to it.

And many nations shall come and say,“Come, let us go up to the mountain of the Lord,To the house of the God of Jacob,That He may teach us about His waysAnd that we may walk in His paths.”For the law shall go forward from Zion,And the word of the Lord [the revelation about Him and His truth] from Jerusalem.

It shall be a day when the Gentiles will come to youFrom Assyria and from the cities of Egypt,And from Egypt even to the river Euphrates,From sea to sea and from mountain to mountain.