None of this have We created without Purpose. But most of them are not aware of this fact. (They fail to realize that the human 'Self' lives on after death and must be recompensed in the Hereafter)
Surely the Day of sorting out is the time appointed for the resurrection of them all
Dr. Munir Munshey
We did not create the heavens and the earth except with a purpose _ (and for a specified time). But most of them (just) do not understand
Dr. Kamal Omar
We did not create those two but with a definite purpose, but the majority of those people do not know (that the worldly life-span is for striving, test and reward, while the Hereafter is exclusively for accountability and a permanent reward)
We created them not except with truth (i.e. to examine and test those who are obedient and those who are disobedient and then reward the obedient ones and punish the disobedient ones), but most of them know not
We created only as the Truth (the manifestations of Our Names)! But the majority of them do not know (this Truth).
Al-muntakhab fi tafsir al-Qur'an al-Karim
In effect We have not created both of them but in conformity with truth and in agreement with reality with soundness of judgment in the choice of means and ends; but, in darkness most of them walk on and they know not, nor do they even understand