Why would Allah do this?

Believer, you can not compare Quran and Bible because they are poles apart.  Quran is the authentic words of Allah which is perfect and flawless, while the Bible contains the words of a third party, mostly historians, and it is full of contradictions from the Old Testament down to New Testament.

The tafseer of the Quran are not being relied to personal opinion or what you call �divine inspiration� by praying that the Holy Spirit will enlighten you (only during the time you are reading the passages of the bible). Muslim doesn�t rely on the so called divine inspiration for who knows that inspiration might come from Satan and cloth with Satan�s inspiring words. If we do such, each and everyone would have their own inspirations and you know well the outcome�CHAOTIC!

As I said before, the Quran are being explained by the Quran itself and some explanations can be found in the Sunnah of the Prophet (pbuh). Muslim is always praying for guidance every time we make an audience with Allah (in our prayers) and we do that 5 times a day and not just during the time that we read the Quran.

The Christianity believe that the living word of God is Jesus (pbuh) as what John the evangelist said which is difficult and mystical on the surface and is much more plain-spoken than we realize.

John is saying that Jesus is the words of the Bible come to life as an ordinary human being, so that people might see the Bible lived out in ordinary daily living, and so that everyone can experience the Bible in everyday terms. John 1:10-18

Jesus is the one that was sent by Allah to deliver Allah�s Messages (commands) to mankind through HIS revelations that can be found in the ORIGINAL Gospel of Jesus, to guide mankind on how to meet the pleasure of Allah in their daily affairs. This means that Jesus is just His Messenger and not the son of god. Allah spoke through Jesus His Messenger and not His son for Allah is not human and Jesus (pbuh) is the son of Mary, a human being like us.

Islam is not just a religion as most people believe it to be, but it is a complete way of life. Islam is very logic and do not entertain superstitious belief, do not accept reasoning that comes from a mere figment of imagination--> a DELUSION. Islam is the true way of life, a path that is acceptable to Allah, the Creator of all that exists�amen.

My question should have read- Do Quran only Muslims use the tafseer, commentaries?

Quran in itself is very concentrated stuff you have to dilute it in order to understand and get the full picture of it. You do that by going to the tafseer of the verses to understand and get the bigger picture. The verses were revealed with reasons. We should know when the verse was revealed and what was the occasion and why it was revealed, only then can one reach the depth and understand what ALLAH is telling us and you can see it in the tafseer.

The method of tafseer is to explain the Quran with the Quran itself. What is being mentioned in one verse is usually explained in another verse. Other source of explanation can be found in the hadith of the Prophet for the hadith elaborate more about the verses. Tafseer by mere opinion is prohibited as what the Prophet said:

�Whoever explains the Quran with his opinion or with what he has no knowledge of, then let him assume his seat in the Fire.� � Tirmidhi, An-Nasai and Abu Dawud

Quran is for everyone, Muslim or not because it is the Word of our Creator and we are all His creation and we are all entitled to know what He commanded us.