Rather, they have denied that which they encompass not in knowledge and (10:39)

Almuntakhab Fi Tafsir Alquran Alkarim

The fact is that: they deny the Quran and assert that it is false without deliberating on its divine discourse and without knowledge of its precepts, nor has its interpretation been given yet. Similarly reacted their predecessors under the vexations of their minds, and you can see the fatal consequence of the wrongful of actions

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(10:39) In fact they arbitrarily rejected as false whatever they failed to comprehend and whose final sequel was not apparent to them. *47 Likewise had their predecessors rejected the truth, declaring it falsehood. Do observe, then, what was the end of the wrong-doers.

Rather, they have denied that which they encompass not in knowledge and meaning

*47). There can only be two justifiable grounds for those who wish to reject the Qur'an as a false scripture: either they should have definite knowledge to the effect that it is a fabrication or they should be able to demonstrate that the statements made by, or the information contained in it, are false. But as things stand, neither of these two reasons is available. For none can contend, on the basis of definite knowledge, that the Book had been authored by someone who, in his turn, falsely attributed it to God. Nor has anyone been able to penetrate the realms of the suprasensory world and claim, on that basis, that they know for sure that this Book contains false information; that whereas in fact there are several gods, this Book claims that there is none other than the One God; that all its statements about matters such as the existence of God and angels are counter to reality. Nor has anyone returned to life after having suffered death to contend that the Qur'anic statement about the reckoning and reward and punishment in the Next Life is false. Those who continue to decry the Qur'an as false are in fact doing so merely on grounds of conjecture, even though they do this with an air of confidence which at times creates the impression that statements about the fakeness and falsity of the Qur'anic teachings are scientifically established facts.
 

Rather, they have denied that which they encompass not in knowledge and meaning in Urdu

اصل یہ ہے کہ جو چیز اِن کے علم کی گرفت میں نہیں آئی اور جس کا مآل بھی ان کے سامنے نہیں آیا، اُس کو اِنہوں نے (خوامخواہ اٹکل پچّو) جھٹلا دیا اِسی طرح تو ان سے پہلے کے لوگ بھی جھٹلا چکے ہیں پھر دیکھ لو اُن ظالموں کا کیا انجام ہُوا