[andrepd]

I disagree. When you are absolutely sure that God itself is on your side, then there is no atrocity to big to commit. I feel that religious zeal has led to some of the worst catastrophes in human history. I would put para-religious zeal in that category too, like dogmatic forms of communism.

[Avicebron]

You can substitute "Truth", "Most Rational Action", or "Reality" in for God in your sentence and still get the same meaning.

People can and will justify almost everything.