COMMENTARY on 57:16
A. Yusuf Ali:

Translation:
Has not the time arrived 5295 for the Believers that their hearts in all humility should engage in the remembrance of Allah and of the Truth which has been revealed (to them), and that they should not become like those to whom was given Revelation aforetime, 5296 but long ages passed over them and their hearts grew hard? For many among them are rebellious transgressors.
Commentary:

5295  Humility and the remembrance of Allah and His Message are never more necessary than in the hour of victory and prosperity.

5296  The men immediately referred to are the contemporary Jews and Christians. To each of these Ummahs was given Allah's Revelation, but as time passed, they corrupted it, became arrogant and hard-hearted, and subverted justice, truth, and the purity of Life. But the general lesson is far wider. No one is favoured by Allah except on the score of righteousness. Except on that score, there is no chosen individual or race. There is no blind good fortune or ill fortune. All happens according to the just laws and Will of Allah. But at no time is humility or righteousness more necessary than in the hour of victory or triumph.

 

Muhammad Asad:

Translation:
IS IT NOT time that the hearts of all who have attained to faith should feel humble at the remem­brance of God and of all the truth that has been bestowed [on them] from on high, 22 lest they become like those who were granted revelation aforetime, 23 and whose hearts have hardened with the passing of time so that many of them are [now] depraved? 24
Commentary:
22  I.e., "Should not the remembrance of God and His revelation make them humble rather than proud?" This is an emphatic warning against all smugness, self-righteousness and false pride at having "attained to faith" - a failing which only too often attains to such as consider themselves "pious".
23  This is apparently an allusion to the spiritually arrogant among the Jews, who regard themselves as "God’s chosen people" and, therefore, as predestined for His acceptance.
24  I.e., so that now they act contrary to the ethical precepts of their religion: implying that the purpose of all true faith is to make man humble and God-conscious rather than self-satisfied, and that a loss of that spiritual humility invariably results in moral degeneration.