Then, when the sacred months have passed, slay the idolaters wherever ye find them, and take them (captive), and besiege them, and prepare for them each ambush. But if they repent and establish worship and pay the jizya (poor-due), then leave their way free. Lo! Allah is Forgiving, Merciful. - Qu’ran, 9:5 If the above might look familiar, it’s known as Ayat al-Sayf, or the Verse of the Sword. And unfortunately, it’s quite a significant passage in governing the relationship between Muslims and the rest of the world.