The worst outcome associated with wagering for God (gain in earthly life) is strictly better than the best outcome associated with wagering against God (earthly life).
This is again a decision under uncertainty (in our technical sense)—it involves no considerations of probability. Indeed, “the wager” dissolves, twice over: utilities alone definitively settle that you should wager for God, and in any case it is not really a gamble at all, since your gain is certain! (That is my understanding of “you have wagered for something certain”; it is not God's existence itself that is “certain”.) The worst outcome associated with wagering for God (gain in earthly life)