The realization that God is not the source of morality is, I think, one of the great contributions of philosophy to clarifying human thought. - Jerry Coyne

I am SO tired of this trope. It may indeed be the case that we can’t justify a priori via philosophical lucubrations that we arrive at the truth about nature only by using the methods of science. My answer to that is increasingly becoming, “So bloody what?” The use of science is justified because it works, not because we can justify it philosophically. If we are interested in finding out what causes malaria, no amount of appeal to a deity, philosophical rumination, listening to music, reading novels, or waiting for a revelation will answer that question. We have to use scientific methods, which, of course, is how causes of disease are found.

In the end, why isn’t it better to find out how the world really works instead of making up stories about it, or accepting stories concocted centuries ago?

Religion is heavily laden with the kind of confirmation bias that makes people see their own faiths as true and all others as false. In other words, religion is replete with features to help people fool themselves.