'In Zion' in the Bible

Let the horn be sounded in Zion, and a war-cry in my holy mountain; let all the people of the land be troubled: for the day of the Lord is coming;

Let a horn be sounded in Zion, let a time be fixed for going without food, have a holy meeting:

And you will be certain that I am the Lord your God, living in Zion, my holy mountain: and Jerusalem will be holy, and no strange person will ever again go through her.

And I will send punishment for their blood, for which punishment has not been sent, for the Lord is living in Zion.