Tafsir of Sad 38:27

The Wisdom behind the Creation of This World Allah tells us that He did not create the creatures in vain; He created them to worship Him Alone, then He will gather them on the Day of Gathering and will reward the obedient and punish the disbelievers. Allah says:

وما خلقنا السماء واﻻرض وما بينهما باطﻼ ذلك ظن الذين كفروا

And We created not the heaven and the earth and all that is between them without purpose! That is the consideration of those who disbelieve! meaning, those who do not think that the resurrection and the place of return will occur, but they think that there is nothing after this world.

فويل للذين كفروا من النار

Then woe to those who disbelieve from the Fire! means, woe to them on the Day when they will be resurrected, from the Fire that is prepared for them. Then Allah explains that because of His justice and wisdom, He does not treat the believers and the disbelievers equally. Allah says:

أم نجعل الذين آمنوا وعملوا الصالحات كالمفسدين في اﻻرض أم نجعل المتقين كالفجار