Oh, man, I was freaking out! I was like, "Why does this sound familiar, but I don't have it on my iPod?!" This audio is from the video you can download off of FlyleafOnline. It's from that 2004 Pure Volume show. *sigh of relief*
OMG this is legit! There's another video called "Red Sam DEMO VERSION (lyrics) Flyleaf 2005 EP" but that's a Flyleaf demo. I think this actually a Passerby demo!!!!