يا أَيُّهَا الإِنسانُ إِنَّكَ كادِحٌ إِلىٰ رَبِّكَ كَدحًا فَمُلاقيهِ
[then,] O man - thou [that] hast, verily, been toiling towards thy Sustainer in painful toil4 - then shalt thou meet Him!
4. An allusion to the fact that in man's earthly life - irrespective of whether one is consciously aware of it or not - sorrow, pain, drudgery and worry by far outweigh the rare moments of true happiness and satisfaction. Thus, the human condition is described as "painful toiling towards the Sustainer" - i.e., towards the moment when one meets Him on resurrection.
And as for him whose record shall be placed in his right hand,7
7. At first glance, this seems to contrast with 69:25, where it is stated that the record of the unrighteous "shall be placed in his left hand". In reality, however; the present formulation alludes to the sinner's horror at his record, and his wish that he had never been shown it (69:25): in other words, his not wanting to see it is symbolized by its appearance "behind his back".
9. Thus God "calls to witness" the fact that nothing in His creation is ever at a standstill, since everything moves unceasingly from one state of being into another, at every moment changing its aspect and its condition: a phenomenon aptly described by the Greek philosopher Heraclitus by the phrase panta rhei ("everything is in flux").
[even thus, O men,] are you bound to move; onward from stage to stage.10
10. Or: "from one state to another state" (Zamakhshari): i.e., in an unceasing progression - conception, birth, growth, decline, death and, finally, resurrection.
What, then, is amiss with them that they will not believe [in a life to come]?11
11. Since the inexorable movement of all that exists from stage to stage or from one condition into another corresponds to a fundamental law evident in all creation, it is unreasonable to assume that man alone should be an exception, and that his onward movement should cease at the moment of his bodily death, not to be followed by a change-over into another state of being.