14 “In the courts,” he says, “of the Lord's house”. What is the Lord's house, the same is the Lord's handmaid: and what is God's house, save all His people? It therefore follows, “In the sight of all His people.” And now he more openly names his mother herself. For what else is His people, but what follows, “In the midst of you, O Jerusalem”? For than that which is returned grateful, if it be returned from peace, and in peace. But they who are not sons of this handmaid, have loved war rather than peace....
Source: The Enarrations, or Expositions, on the Psalms (New Advent)