In the beginning of Surat Al-Baqarah we talked about the separate letters, Allah said,

[تِلْكَ ءايَـتُ الْكِتَـبِ]

(These are the verses of the Book) in reference to the Clear Qur'an that is plain and apparent, and explains, clarifies and makes known the unclear matters. Allah said next,

[إِنَّآ أَنْزَلْنَاهُ قُرْآنًا عَرَبِيًّا لَّعَلَّكُمْ تَعْقِلُونَ ]

(Verily, We have sent it down as an Arabic Qur'an in order that you may understand.) The Arabic language is the most eloquent, plain, deep and expressive of the meanings that might arise in one's mind. Therefore, the most honorable Book, was revealed in the most honorable language, to the most honorable Prophet and Messenger , delivered by the most honorable angel, in the most honorable land on earth, and its revelation started during the most honorable month of the year, Ramadan. Therefore, the Qur'an is perfect in every respect. So Allah said,

[نَحْنُ نَقُصُّ عَلَيْكَ أَحْسَنَ الْقَصَصِ بِمَآ أَوْحَيْنَآ إِلَيْكَ هَـذَا الْقُرْءَانَ]

(We relate unto you the best of stories through Our revelations unto you, of this Qur'an.)