Surah At-Tawbah — Ayah 125 (9:125)

English translation (Saheeh International)

But as for those in whose hearts is disease, it has [only] increased them in evil [in addition] to their evil.¹ And they will have died while they are disbelievers.

1. - Literally, "filth," i.e., disbelief and hypocrisy.

Brief commentary

As for the hypocrites, the revelation of the Qur’ān with its laws and stories increases them in sickness and wickedness because of their rejection of what is revealed, so that these deplorable characteristics become fixed in them; and the disease of their hearts increase with the revelation of the Qur’ān, because whenever something is revealed they are sceptical about it.