I appreciate the heads up, but my signature is not religious discussion or comment. I'm not replying to someone's post with a religious comment nor am I starting a religions discussion or trying to start one with my signature.
I understand the meaning of the "rule" you have in place, but my signature does not defy that rule in any way. If the board owner(s) and/or moderators feel it necessary to add a clause to the rules prohibiting biblical quotes in signatures, then I'll change it.
Until then, though, I'm not disobeying any of the rules of this message board by having that quote in my signature.
Edit: If I was to start a religious debate, start a thread about religion, or reply to a thread with a religion-based comment, then yes, I would be breaking the rule and would have absolutely no problem with removing/rewording my post/thread or having the moderators do so. A quote in a signature is not religious discussion or comment.