I dunno, Paul. It seems to me that a life of faith lived in integrity and joy, is wonderful evidence.
It just doesn't fit YOUR criteria. If I were trying to convert you, then I'd have more of an obligation to meet your criteria. But I have no desire to proselytize, and I see no obligation to defend what I believe. If people see something valuable in the way I live life and want to share my faith, that would be wonderful - but that's entirely up to them. I don't want to push nothin' on nobody.

-Joe-