79. Every nation which rises in place of one that falls, can perceive the misdeeds which brought about the preceding nation's fall. Were such a people to make use of their reason, to appreciate the false ideas and misdeeds which led to the undoing of those who once strutted abroad in vainglory, they would have realized that the Supreme Being Who had once punished them for their misdeeds and deprived them of power and glory had not ceased to exist. Nor has that Supreme Being been deprived of the power to inflict a punishment on the people of the present times, a power with which He smote the nations of the past. Nor has God become bereft of the capacity to dislodge the wicked nations of today in the manner He did in the past.

80. Those people who derive no lesson from history, who thoughtlessly pass over the ruins of the past, remaining engrossed in heedlessness, are deprived by God of the capacity to think correctly and to pay due attention to the counsel of well-wishers. Such is the God-made law of nature that if someone closes his eyes, not even a single ray of sun-light will reach his sight. Similarly, if someone is bent upon closing his ears none can make him hear even a word.

81. The purpose behind the 'sealing of hearts' mentioned in the preceding verse is also explained in the present verse. It is clear from the two verses that the 'sealing of hearts' means that man's capacity to hear and understand the truth is seriously, impaired because of the operation of natural, psychological laws. Because of these laws, once a person turns away from the truth because of his irrational prejudices and the dominance of lust, he becomes enmeshed in his own obstinacy and adamance. With the passage of time this adamance is compounded to such an extent that despite all rational and empirical evidence in support of the truth, he continues to reject it.

82. The statement that 'We did not find most of them true to their covenants' signifies the general propensity of people not to honour their commitments. They are neither faithful to the primordial covenant which they made with God see (al-A'raf 7: 172) which is binding on every mortal as God's servant and creature, nor faithful to the collective covenant which is binding on every human being as a member of the human fraternity. Nor are men generally faithful to the commitments which they make to God in hours of distress or in moments when their moral instincts are awake and astir. Violation of any of these covenants has been termed fisq (transgression).