Give this warning to those in whose (hearts) is the fear that they will be brought (to judgment) before their Lord: except for Him they will have no protector nor intercessor: that they may guard (against evil). 51 Hence, repulse not [any of] those who at morn and evening invoke their Sustainer, seeking His countenance. Thou art in no wise accountable for them - just as they are in no wise accountable for thee - and thou hast therefore no right to repulse them: for then thou wouldst be among the evildoers. 52 For it is in this way that We try men through one another - to the end that they might ask, "Has God, then, bestowed His favour upon those others in preference to us?" Does not God know best as to who is grateful [to Him]? 53 When those who believe in Our revelations come to you, say, "Peace be upon you. Your Lord has taken it upon Himself to be merciful. So that if any one among you does evil in ignorance and repents thereafter and makes amends, then He is most forgiving and ever merciful." 54 Thus do We explain the signs in detail: that the way of the sinners may be shown up. 55