that God may forgive you by virtue of your struggle what is past of your sin and what is to come of it so that your community might then desire to struggle like you — this verse also constitutes a justification of the concept of the infallibility ‘isma of prophets peace be upon them against sin by way of a definitive rational proof the lām in li-yaghfira ‘that He may forgive’ is for indicating the ultimate reason for the conquest so that the content of this latter statement constitutes an effect and not the cause and that He may perfect by way of the mentioned victory His favour to you and guide you thereby to a straight path upon which He will confirm you — and this straight path is the religion of Islam;