You fool, that Caedmon’s Call song is a cover of a Shawn Colvin song. Shawn Colvin is well known. She won the Grammy for record of the year a few years back for Sunny Came Home. In addition, that song, Climb On, is fairly well known. The original Shawn Colvin version appears in the movie As Good As It Gets, during a kitchen scene.
In other words, it’s a well known secular song by Shawn Colvin. My guess is that he knows Shawn Colvin, not Caedmon’s Call. I’m basing this on the fact that after he quotes the lyric, he freaking says it’s by Shawn Colvin.