This is one of the descriptions of the Holy Book mentioned in several verses:
“Qaaf. By the Glorious Quran!” (Verse 1 of Surah Qaaf)
“Indeed, this is a Glorious Quran, that exists in a well-guarded tablet.” (Verses 21-22 of Surah Al-Buruj)
Majid is a word whose root word is Majd, meaning extended glory and the Quran has extended and infinite glory. Its appearance is beautiful, it content is enormous, its commands are excellent and its teachings are life-giving.
Quran interpreters have mentioned interesting points about Verse 1 of Surah Qaaf:
1- Swearing by the Quran is very important because it has glory and greatness. In many verses of the Holy Book, God swears by different things such as His Dhat (essence), the Resurrection Day, angels, the sun, the moon, etc. God does not need to swear by anything but the swearings in the Quran have two major benefits. First, they lay emphasis on what is going to be said and, second, they show the greatness of what God swears by. No one swears by something that has little value.
One proof for the fact that Al-Huruf al-Muqatta'a (disjoined letters) in the Quran are to show the greatness of the Holy Book is that in Surah Qaaf, God swears by the “Glorious Quran” right after a disjoined letter.
2- If you want glory and greatness, you should go to the owner of glory and greatness. If one wants to live a dignified life, he should live and associate with dignified people. That is why God says if you want greatness and glory, you should go to the Quran.
3- If the Quran is Majid and Kareem (glorious and honorable), then we should glorify and honor it. When God describes the Quran as glorious and honorable, it adds to our duty of glorifying and honoring the Holy Book.
As for Verses 21-22 of Surah Al-Buruj, God describes the Quran as Majid in order to emphasize that the unbelievers’ insistence on rejecting the Quran and referring to it as sorcery and poetry is useless because the Quran is Glorious and is being protected in a well-guarded tablet, so evil-doers cannot reach it and distort it.