[12] When your Lord revealed to the angels: I am with you, therefore make firm those who believe. I will cast terror into the hearts of those who disbelieve. Therefore strike off their heads and strike off every fingertip of them. [13] This is because they acted adversely to Allah and His Messenger; and whoever acts adversely to Allah and His Messenger-- then surely Allah is severe in requiting (evil). [14] This-- taste it, and (know) that for the unbelievers is the chastisement of fire. [15] O you who