'Mountain of the Lord' in the Bible

But in the last days it will come about that the mountain of the Lord's house will be placed on the top of the mountains, and be lifted up over the hills; and peoples will be flowing to it.

And a number of nations will go and say, Come, and let us go up to the mountain of the Lord, and to the house of the God of Jacob; and he will give us knowledge of his ways and we will be guided by his word: for from Zion the law will go out, and the word of the Lord from Jerusalem.