(And guard against a day) fear the torment of a day, i.e. the Day of Judgement (when no soul will in anything avail another) no unbelieving soul will be able to drive away anything from another unbelieving soul; it is also said that this means: no righteous soul will be able to drive away anything from another righteous soul; and it is said that this means: no father will be able to drive away anything from his son and no son will be able to drive away Allah's punishment from his father, (nor will compensation be accepted from it) no ransom will be accepted, (nor will intercession be of use to it) no intercessor will intercede for it: not a close angel, a sent messenger or a righteous servant; (nor will they be helped) will be prevented from what they will face.