Knowing this, you can peek behind the curtains of another claim you hear often. That nothing about Islam is violent: the killing of innocent people is never justified by Islam. Ah, again, how nice. But who is innocent? Just think for a moment if you would be considered innocent, you who rejects Islam, the command of the very Lord of the universe! Are you innocent?
Lo! Those who hide the proofs and the guidance which We revealed, after We had made it clear to mankind in the Scripture: such are accursed of Allah and accursed of those who have the power to curse. (The Quran, 2:159)