No Harm to Allah

Do not grieve over those who rush toward disbelief. They cannot harm Allah in the least. He does not intend to grant them any share in the Hereafter.

3:176Let not their conduct grieve thee, who run easily to disbelief, for lo! they injure Allah not at all. It is Allah's Will to assign them no portion in the Hereafter, and theirs will be an awful doom.

So don’t let their words grieve you.

36:76So let not their speech grieve thee (O Muhammad). Lo! We know what they conceal and what proclaim.

Let not the disbelievers think they have escaped; indeed, they will not prevail.

8:59And let not those who disbelieve suppose that they can outstrip (Allah's Purpose). Lo! they cannot escape.

Whoever does not respond to the caller of Allah will not escape on earth, and he will have no protectors besides Him. They are in clear error.”

11:20Such will not escape in the earth, nor have they any protecting friends beside Allah. For them the torment will be double. They could not bear to hear, and they used not to see.

46:32And whoso respondeth not to Allah's summoner he can nowise escape in the earth, and he hath no protecting friends instead of Him. Such are in error manifest.

Have you not seen those who exchanged Allah’s favour for disbelief and led their people to ruin?

14:28Hast thou not seen those who gave the grace of Allah in exchange for thanklessness and led their people down to the Abode of Loss,

Those who trade faith for disbelief will not harm Allah in the least.

3:177Those who purchase disbelief at the price of faith harm Allah not at all, but theirs will be a painful doom.

They are those who trade guidance for misguidance, yet their bargain brings no profit, nor are they rightly guided.

2:16These are they who purchase error at the price of guidance, so their commerce doth not prosper, neither are they guided.