In an infinite multiverse of possibilities, there are Elseworld worlds far stranger and darker than main DC Universe that fans have come to know and love over the years. In 1991's Batman: Holy Terror, by Alan Brennert, Norm Breyfogle, Lovern Kindzierski and Bill Oakley, one such world saw Bruce Wayne navigate an America that had been dominated by religious fanaticism used to justify a corrupt government. In the process, he became a priest and learned about the dark side of his country. But Bruce Wayne, in most universes, is always a force for good. In the process of reconciling himself with the truth of his country, Bruce became this world's version of Batman.
His story, as always, starts with the murder of his parents. Bruce spent years trying to find peace after they were murdered by Joe Chill and finally found it by becoming a priest. But before he took his vows, Jim Gordon informed Bruce that his parents' deaths were not a random street crime, but an organized hit ordered by the leaders of their government, the Holy Elite. Bruce's parents had been helping the many victims of the government in secret and for that crime, they were discreetly assassinated.
Infuriated, Bruce denounced the government, but retained his faith, choosing to follow the word of God instead of His self-appointed representatives. Using an old demon costume his father once wore in a passion play, Bruce became Batman and began to hunt down those responsible for his parents' murders. In the process, Batman learned that it was not the Privy Council that ordered their deaths, but the Star Chamber, a shadow branch of the government handing out judicial decrees.
His hunt for them led him to a secret laboratory and prison run by the government to experiment on metahumans. Batman met and freed Barry Allen, helping him defeat a severely indoctrinated Zatanna in the process. Tragically, Barry was killed by the program's director who revealed that the Holy Elite had even managed to capture this world's Superman and kill him. Batman escaped and the director was killed in the process. But by this point, Batman was coming to accept that there were more wrongs to be righted than just the loss of his childhood.
Arriving in the Star Chamber, he was confronted by a lone man who revealed that the Star Chamber court votes in secret. There was no way to know for certain who voted to acquit the Waynes or who condemned them. This was a blow to Batman, but one he realized made little difference in the long run. He could no longer blame one individual for his parents' deaths. He could only blame the system that gave these men the power to kill and torture millions. Thus, Bruce decided that by day he would preach the word of God to the people, holding to the true ideals, while at night he would crusade against those who twist scripture to their needs and use it to rule over the country as dictators. And so, even in as warped a world as this, the world found a Batman who was just as determined to do good as he is in any other world.