That is why the verse immediately says...
That is why the verse immediately says: “… so whoever disbelieves, his disbelief shall be against him, and their unbelief does not increase the infidels with their Lord in anything except hatred; …” However, their disbelief does not add to them except loss.
It continues saying: “… and their unbelief does not increase the infidels but loss.” In fact, the last two sentences are as a commentary upon the sentence: “… whoever disbelieves, his disbelief shall be against him, …”, because this sentence implicitly says that the infidelity of a person results a loss upon him. Then the Qur’a-n brings two kinds of reasoning for this subject.
The first is that disbelief and infidelity with their Lord, Who is the giver of all bounties, does not result aught save Divine Wrath and punishment. The other is that, besides the Divine Wrath, this infidelity does not give anything to them except loss. They lose their lifetime and the capital of their own existence and take wretchedness, degradation, and darkness for it. What a loss is greater than this? And either of these two proofs is enough for condemning this incorrect style.
The repetition of the Arabic term /la-yazi-d/ (does not increase), which is in present tense, is an indication to the continuation of action and points to this fact that man is naturally looking for increase and excess. If he paves the path of Monotheism, he will have the increase of happiness and perfection, but if he paves the path of disbelief, he will obtain the increase of Wrath of Allah and loss.
Or have We given them a Book so that they follow a clear argument from it? Nay, the unjust promise each other nothing but delusions.” Commentary: Islam is a logical religion. It awakens conscience of people by asking questions. The Prophet of Islam (p.b.u.h.) had a duty to speak with the opponents of Islam. This verse is another decisive answer to the polytheists.