Tafsir of Al-Ahqaf 46:3

ما خلقنا السماوات واﻻرض وما بينهما إﻻ بالحق

We created not the heavens and the earth and all that is between them except in truth, meaning, not in idle play and falsehood.

وأجل مسمى

and for a specified term. meaning, for a fixed and specified duration that will not increase or decrease. Allah continues,

والذين كفروا عما أنذروا معرضون

But those who disbelieve, turn away from that of which they are warned. Meaning, the disbelievers are distracted from what is intended for them. Allah has indeed revealed to them a Book and sent to them a Messenger. Yet, they obstinately turn away from all of that. Therefore, they will soon realize the consequence of their behavior. Refuting the Idolators Allah then says,