'Mountain of the Lord' in the Bible

And many peoples will 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 concerning His waysAnd that we may walk in His paths.”For the law will go forth from ZionAnd the word of the Lord from Jerusalem.

You will have songs as in the night when you keep the festival,And gladness of heart as when one marches to the sound of the flute,To go to the mountain of the Lord, to the Rock of Israel.

Many nations will come and say,“Come and let us go up to the mountain of the LordAnd to the house of the God of Jacob,That He may teach us about His waysAnd that we may walk in His paths.”For from Zion will go forth the law,Even the word of the Lord from Jerusalem.

Thus says the Lord, ‘I will return to Zion and will dwell in the midst of Jerusalem. Then Jerusalem will be called the City of Truth, and the mountain of the Lord of hosts will be called the Holy Mountain.’