I think every Christian musician is attracted to the Psalms. First of all, it’s the one place in the Bible we can point to as validating our profession. Music can’t be that big of a waste of time–there’s a whole book of songs in the Bible! Plus, David was a stud. A singer/songwriter who fights lions–how cool is that?
In any case, way back before I had any thought of becoming a music minister (more accurately: back when I had specific thoughts about NOT becoming a music minister) I would find myself periodically writing songs based on Psalms I was reading. Here is one such song, Psalm 139.