Sh. Salih: Keep in mind that Allah sent down this book to revive all the hearts and He didn’t exclude any specific type of heart, meaning that all believers are addressed within the Qur’an. For a sinful believer, it shows him the way to repentance, and for the righteous believer, it shows him the way to consistency, and for whoever in between, it shows him how to get further from sins, and closer to righteousness. It is a revival for each heart, and a guide to good for everyone, and a means for mercy for everyone. It’s not to be said that the Qur’an is intended for a specific group of believers. It’s indeed for all believers, Jinn & Humans. “Say, (O Muhammad), ‘It has been revealed to me that a group of the jinn listened…’ and So which of the favors of your Lord would you (two) deny?” It’s enough honor for Qur’an that it is Allah’s speech. And it’s impossible for the hearts that He created, to truly revive by anything greater than the Qur’an, the speech of their very same Creator and Maker, Glory is to Him. So never put barriers between you and the Qur’an.
Never think it’s not addressing you personally. We are all addressed in it, and we all find our guidance in it. In it, the wise finds wisdom, the scholar finds knowledge, the sinful finds repentance, and the righteous finds gratitude; everyone.
But remains a group whom their hearts have been sealed, about whom Allah said, “it is upon them blindness.” But this doesn’t include any of our viewers. These are rather the disbelievers who refused to believe it at all.
But whoever believers in the Qur’an, the speech of his creator, can always find guidance in it, day and night.
If he’s in authority, he finds “And they ask you, about Dhul-Qarnayn.” if he was tested with illness, he finds “And (mention) Job, when he called to his Lord.” If he spends his night in stress, he finds “and we saved him from the distress.” If he couldn’t have children, he finds “And (mention) Zakarriyyah, when he called to his Lord: ‘My Lord, do not leave me alone (with no heir) while you are the best of inheritors.’” If he was seeking knowledge, he finds “Oh my Lord, increase me in knowledge.” Everyone! A businessman finds “but only (in lawful) business by mutual consent.” A parent finds, “Allah instructs you concerning your children.” A child finds, “and to parents, good treatment.” No one was left out from being addressed in the Qur’an."
— https://www.youtube.com/watch?v=ZSHYa6CtQKI#t=1028 (at about 17 min)