If (illā: lā has been assimilated with the nūn of the conditional particle in, in both instances [here and in the next verse]) you do not go forth, [if you do not] set out with the Prophet (s) for the struggle, He will chastise you with a painful chastisement, and He will substitute [you with] another folk other than you, that is, He will bring them in your place, and you will not hurt Him, that is, God, or [‘him’ as being] the Prophet (s), at all, should you neglect to help him [to victory], for God [Himself] will indeed bring victory to His religion; for God has power over all things, including bringing victory to His religion and His Prophet.