Cass McCombs has an ear for bittersweet harmonies, and an obsession with death. There is a an air of detachment in voice which helps him escape from expressing any real raw emotion, and his delivery is so pitch perfect that one must assume him to be a classically trained singer.
This song is about being an executioner, and yet, he sings about it like it was just any old profession, which gives him "purpose" and gives him happiness. The song is written as a love song to an unnamed lover: "I love you, and I love my job". It's an incredibly strange and unsettling sentiment.