Qaaf (The letter Qaaf)

15. Were We then tired with the first creation [to be hopeless of creating you anew on the Day of Resurrection]? Nay, they are in confused doubt about a new creation [resurrection].

Creation of any existent being bears testimony to Divine Omnipotence to create it anew, since the first creation justifies the possibility of further creations.

Disbelievers may not produce any argument for substantiating their denial of Resurrection, but they merely entertain doubts;

(“Nay, they are in confused doubt about a new creation [resurrection]”).

The interrogative particle (a-) is employed to indicate denial. In other words, the blessed Verse is asking disbelievers whether they imagine that God Almighty is tired of the first creation and He is unable to create anew. Disbelievers are mistaken as to Divine Omnipotence as to creating anew unaware of the fact that they are subject to permanent change.