Stephen R. Prothero said this quote

On the ethics of war the Quran and the New Testament are worlds apart. Whereas Jesus tells us to turn the other cheek, the Quran tells us, 'Whoso commits aggression against you, do you commit aggression against him' (2:194). The New Testament says nothing about how to wage war. The Quran, by contrast, is filled with just-war precepts. Here war is allowed in self-defense (2:190; 22:39), but hell is the punishment for killing other Muslims (4:93), and the execution of prisoners of war is explicitly condemned (47:4). Whether in the abstract is is better to rely on a scripture that regulates war or a scripture that hopes war away is an open question, but no Muslim-majority country has yet dropped an atomic bomb in war.

~ Stephen R. Prothero

Almost all religions provide opportunities for human beings to convince themselves of their own righteousness, to speak in the name of God, and even to go to war on God's behalf. This 'blasphemy of certainty' is also rife among secularists who in their case have not God but science or the proletariat on their side.

~ Stephen R. Prothero

Widespread criticisms of jihad in Islam and the so-called sword verses in the Quran have unearthed for fair-minded Christians difficult questions about Christianity's own traditions of holy war and 'texts of terror.' Like Hinduism's Mahabharata epic, the Bible devotes entire books to war and rumors thereof. Unlike the Quran, however, it contains hardly any rules for how to conduct a just war.

~ Stephen R. Prothero

Pretending that the world’s religions are the same does not make our world safer. Like all forms of ignorance, it makes our world more dangerous. What we need on this furiously religious planet is a realistic view of where religious rivals clash and where they can cooperate.

~ Stephen R. Prothero