The Quran

Preface

وَذَرِ الَّذينَ اتَّخَذوا دينَهُم لَعِبًا وَلَهوًا وَغَرَّتهُمُ الحَياةُ الدُّنيا ۚ وَذَكِّر بِهِ أَن تُبسَلَ نَفسٌ بِما كَسَبَت لَيسَ لَها مِن دونِ اللَّهِ وَلِيٌّ وَلا شَفيعٌ وَإِن تَعدِل كُلَّ عَدلٍ لا يُؤخَذ مِنها ۗ أُولٰئِكَ الَّذينَ أُبسِلوا بِما كَسَبوا ۖ لَهُم شَرابٌ مِن حَميمٍ وَعَذابٌ أَليمٌ بِما كانوا يَكفُرونَ

Yusuf Ali

Leave alone those who take their religion to be mere play and amusement,¹ and are deceived by the life of this world. But proclaim (to them) this (truth): that every soul delivers itself to ruin by its own acts:² it will find for itself no protector or intercessor except God. if it offered every ransom, (or reparation), none will be accepted: such is (the end of) those who deliver themselves to ruin by their own acts: they will have for drink (only) boiling water, and for punishment, one most grievous: for they persisted in rejecting God.

Cf. 6:32, where we are told that the life of this world is mere play and amusement, and Religion and the Hereafter are the serious things that require our attention. Worldly people reverse this, because they are deceived by the allurements of this life. But their own acts will find them out.
We must never forget our own personal responsibility for all we do, or deceive ourselves by the illusion of vicarious atonement.