Maybe it's the context.

Here's more context for the quote you gave us.  

“Kill the unbelievers wherever you find them.” Koran 2:191
“Make war on the infidels living in your neighbourhood.” Koran 9:123
“When opportunity arises, kill the infidels wherever you catch them.” Koran 9:5
“Any religion other than Islam is not acceptable.” Koran 3:85
“The Jews and the Christians are perverts; fight them.”… Koran 9:30
“Maim and crucify the infidels if they criticize Islam” Koran 5:33
“Punish the unbelievers with garments of fire, hooked iron rods, boiling water; melt their skin and bellies.” Koran 22:19
“The unbelievers are stupid; urge the Muslims to fight them.” Koran 8:65
“Muslims must not take the infidels as friends.” Koran 3:28
“Terrorize and behead those who believe in scriptures other than the Qur’an.” Koran 8:12
“Muslims must muster all weapons to terrorize the infidels.” Koran 8:60