Translation:
54. And between them and their desires is placed a barrier as was done in the past with their partisans: for they were indeed in suspicious (disquieting) doubt.
Notes (Tafseer)
3866. What they desire is to suppress Truth and to indulge in the satisfaction of their own evil, selfish motives. They will be baulked in both, and that itself will be their anguish and punishment. That has always been the law in the eternal struggle between Right and Wrong. All partisans of such narrow cliques have always suffered the same fate.
3867. Note that verses 51-54 are a powerful description of the conflict between right and wrong, and may be understood in many meanings. (1) The description applies to the position in the final Hereafter, as compared with the position in this life. (2) It applies to the position of triumphant Islam in Madinah and later as compared with the position of persecuted Islam in its early days in Makkah. (3) It applies to the reversal of the position of right and wrong at various phases of the world's history, or of (4) individual history.
3868. Cf. xiv. 9, and see n. 1884.