Hear, O God, my petition, listen to my prayer. Who is speaking? An individual, it seems. See if it is an individual: I cried to you from the ends of the earth while my heart was in anguish. Now it is no longer one person; rather, it is one in the sense that Christ is one, and we are all his members. What single individual can cry from the ends of the earth? The one who cries from the ends of the earth is none other than the Son’s inheritance. It was said to him: Ask of me, and I shall give you the nations as your inheritance, and the ends of the earth as your possession. This possession of Christ, this inheritance of Christ, this body of Christ, this one Church of Christ, this unity that we are, cries from the ends of the earth. What does it cry? What I said before: Hear, O God, my petition, listen to my prayer; I cried out to you from the ends of the earth. That is, I made this cry to you from the ends of the earth; that is, on all sides.
From a commentary on the psalms by Saint Augustine, bishop