What Verses in the Quran Guide the Islamic State?

"Fight until they pay Jizya" (9:29) -- ISIS has set up offices for Jizya collection. "O ye who believe! Fight those of the disbelievers who are near to you, and let them find harshness in you" (9:123).  "Muhammad is the Messenger of Allah, and those who are with him are severe (or ruthless, vehement) against disbelievers, and merciful among themselves." (Quran 48:29).  Owning sex slaves permitted -- Quran 70:29-30.  Readers may know of other versesMuhammad is the Messenger of Allah, and those who are with him are severe (or ruthless, vehement) against disbelievers, and merciful among themselves.