Allah Made Mankind Dwellers on the earth, Generation After Generation, of Various Grades, in order to Test Them

Allah said,

وَهُوَ الَّذِى جَعَلَكُمْ خَلَـئِفَ الاٌّرْضِ

In the fifth (164) verse, Surah Al-An` am reaches its end at a comprehensive note of advice. It brings the past history of peoples and their times into focus and invites attention to a projection towards the future by saying: وَهُوَ الَّذِي جَعَلَكُمْ خَلَائِفَ الْأَرْ‌ضِ وَرَ‌فَعَ بَعْضَكُمْ فَوْقَ بَعْضٍ دَرَ‌جَاتٍ (And it is He who made you vice-regents of the earth and raised some of you in ranks over some others). Here, the word: خَلَائِفَ (khala'if) is the plural form of khalifah which means vice-regent or deputy. The sense of the verse is:

It is Allah Ta` ala who has let you inhabit places occupied by peoples before you. There is no home, no land which you call your private property today, and believe to be so, which was not, only yesterday, under the ownership of other human beings like you. Allah Ta` ala has, by re-moving them, made you sit in their place. Then, worth keeping in mind all the time is the fact of life that everyone among you too is not alike. One is poor, the other is rich. One is low, the other is high. And equally obvious is the fact that, had being rich or being low been within one's control, who would have chosen to remain poor and low? This distance among steps and this difference in ranks is knocking at your doors to tell you that this power, control and choice is in the hands of some other Being who can make anyone poor, if He so wills; make anyone rich, if He so wills; give honour to whom He wills and let whoever He wills be low.