Here it is:
If you believe in god and there is a god, you win. If you believe in him and you are wrong — so what? I once wrote a response to this cunning piece of bet-covering, which took two forms.
I can't get the meaning of bet-covering here.
Should I take it as "a disguise/mask for betting/gambling etc."?
Or should I consider the meaning of the verb "cover" in the context of a bet, roulette etc., as in
You can place your chip to cover three numbers