How we interpret the lyrics are subjective as you can discover by researching the song. It can be taken on several levels.
So here are my humble thoughts.
The first stanza is about a lonely spinster who has attended a wedding, and wishes she could marry:
Lives in a dream
Waits at the window, wearing the face that she keeps in a jar by the door
Who is it for?"
The second stanza reflects on the emptiness, or apathy, toward religion by the church and worshippers:
No one comes near.
Look at him working, darning his socks in the night when there's nobody there
What does he care?"
And in the final stanza the woman has died and no one attended her funeral that was apparently officiated by Father Mckenzie.
Father Mckenzie wiping the dirt from his hands as he walks from the grave
No one was saved"
And the song ends: