There's a wonderful line from Sir Henry at Rawlinson End, also in Rhinocratic Oaths and other Bonzo genius.

"That'll fix it thought Ron, but he was wrong."

Once I finished laughing at Ron's post above I recalled the line. ..

Sanctimonious prat. I don't know or wish to know how Joe and his mind work but I doubt he would act any differently if he didn't have faith. I reckon that to say you can only do good if it satisfies a voice in your head is an insult to anybody, rational or otherwise, who cares about their fellow man.