Religion is a source of our morality. Having said this I do not meant atheists are immoral. Without religious beliefs or doctrines one can be Good or attains godliness and others with religious mindsets can act demonically at times. But on average religions keep us from straying from our positions. Today there is some harmony in humans it is because of religious teachings. There are some issues, no doubt, that relate to inhumane, brutal acts like sacrifice, at times they sacrifice human beings to please their gods, and there are so many people battled to establish or spread their faiths that kill so many innocents. But keeping aside all these things religion still is rooted in moral principles that can save humanity.