What does it mean?
The ability to understand right and wrong would decline. Isn’t that the case today?
Not really, it declined not in this generation but few generations before if you are to know the truth.
Who will give you certain knowledge about what is right and what is wrong?
Society? The ‘enlightened’ mind of the society? No way! They will teach you right and wrong according to their perception, according to their time and according to their societial perspectives.
Science? No way! Science doesn’t bother about the values of the society, morality or humanity.
Then who or where you turn to understand what is right or what is wrong?
Only to the creator of men. He sets the law, He sets the criteria.
And you Muslim left Quran long back and you now judge by the criteria set by men. And the result? The obvious scenerio, declining humanity to the level of insects that a man now has no capability to understand what is right and what is wrong.
May Allah guide Muslim.