The opening chapter, (The Opening), is the heart of the Qurʾān and is repeated in daily prayers and on many other occasions.The second sura, Al-Baqarah (The Cow), is the longest, and subsequent chapters are arranged according to length, with chapters becoming shorter as the text proceeds.All suras except one, Al-Tawba (Repentance), begin with the formula (“In the Name of God, the Infinitely Good, the All Merciful”), which is the formula pious Muslims use whenever they consecrate something.
According to traditional Islamic authorities, the ordering of the chapters also was revealed to the Prophet and is not an ad hoc arrangement made by later scribes, as is claimed by many Western scholars, who do not accept the revealed nature of the Qurʾān.
Each sura is divided into verses called may be as brief as one or two words or as long as several lines.
The verses of the Qurʾān, however, should not be understood as poetry in the ordinary sense.
Because of Arabic’s sacred status, the Qurʾān is, strictly speaking, untranslatable, though the text has been rendered into nearly every other language. In any case, it had become an Arabic term by Muhammad’s lifetime.
The Qurʾān has long been considered the supreme standard of eloquence in the Arabic language.
Qurʾānic Arabic has been studied by non-Arab Muslims all over the world, because the daily prayer recited by all Muslims consists primarily of Qurʾānic verses in Arabic.
Muslims believe that the Arabic language of the Qurʾān is indispensable in conveying God’s message because it was chosen by God himself.
In the same way that everything concerning Christ is sacred for Christians, everything concerning the Qurʾān is sacred for Muslims.
In keeping with the verse, “None toucheth [the Qurʾān] save the purified” (sura 56, verse 79), most Muslims perform ritual ablutions before touching the Qurʾān, which is always found in a place of honour in the home or the s, a term mentioned several times and identified as units or chapters of the revelation.
The title of each sura is derived from a name or quality discussed in the text or from the first letters or words of the sura.
Muslims believe that the Prophet himself, on God’s command, gave the suras their names.