Proofs that the "Book" (Kitab) that the Jews had in Arabia wasn't the modern-day Bibles:

 

-  Gospel of Jesus (Luke 2:52: GOD forgave Jesus' sins and was "charitable" with him).

-  Nag Hammadi Library that was found in Egypt.

-  Not all of the so-called Gnostics were the same.

-  The Mosaic Law is the Jews' Kitaab, and is Moses' Thikr.

-  The Jews fled the persecution of Rome in Northen Arabia to Madina.  They had their own writings with them that were not part of the writtings that were with the Romans.

-  The Jews' Holy Scriptures are mixed between the books that are in the Old Testament and the Talmud and other writtings.  They're no ONLY limited to the OT.

-  No one knows what the Jews of Arabia had from writings.  And they certainly would've hid the ones that prove and prophecy about Prophet Muhammad.

   -  The OT calls them liars and prostitutes.

-  There is a narration about Prophet Muhammad, calling the writting that was brought to him as Holy and Divine.  This is not from the Glorious Quran, and hence, it is doubtful and could be a big lie that was invented on the Prophet.  But even if we assume that it was true, the Prophet called the Law of punishing the adulterer as Holy in their writings.

-  The original canon was lost according to the Christians themselves.

-  The Glorious Quran calls the Christians' beliefs as nothing but conjecture.

-  The Glorious Quran Says that the Jews alter (yu7arrifun) the Words.

-  In the OT, we have a lot of evidence for Islam:

    -  The believers' title is Muslims.
    -  The Prophet of Arabia Prophecies.
    -  Mecca and the Path of Holiness.

-  IMPORTANT:  The Holy Quran recognizes, in several places, and is ok with the Kitaab of the Jews being not in its pure form, and containing alterations.  This still doesn't take away the core Divine Message and Moral Code of the Scriptures, even if they were corrupt.  The Core Divine Message and the Moral Code are well preserved.

    -  The Glorious Quran corrected the previous scriptures and showed where they were in error, and what the Truth was.  Ex: Jesus' crucifixion, Haman story, Jesus spoke when he was a baby, Mary sister of Aaron quote of the Jews who said it,

          

  

Quran's STUNNING Divine Miracles: [1]
 

Allah Almighty also promised in several Divine Prophecies that He will show the Glorious Quran's Miracles to mankind.  For example:
  

1-  The root letters for "message" and all of its derivatives occur 513 times throughout the Glorious Quran.  Yet, the Prophets' and Messengers' actual names (Muhammad, Moses, Noah, Abraham, Lot etc....) were also all mentioned 513 times in the Glorious Quran.  See detailed listing here.


Coincidence?  See 1,000s of examples! [1]. (zip file).

Quran's Stunning Numerical & Scientific Miracles.

Stunning Prophecies [2] [3]

 

2-  Allah Almighty said that Prophet Noah lived for 950 years.  Yet, all Praise and Glory are due to Allah Almighty Alone, the entire Noble Surah (chapter Noah) is exactly written in 950 Letters.  You can thoroughly see the accurate count in the scanned images.

3-  Allah Almighty in the Glorious Quran said that earth is:
  
       -  Spherical: "egg-shaped" [1].
       -  Is rotating around itself.
       -  Is moving in space in curvy orbits [2].
       -  Is traveling through the constantly expanding universe [3].
  

"When the sky disintegrates, and turns rose colored like paint (وردة كالدهان)." (The Noble Quran, 55:37) [2] [3]
  
As we also see from the picture, Noble Verse 55:37 is a Divine Promise (Allah promised to show mankind) that mankind will actually see this come to pass one day.  NASA and other space agencies, by Allah Almighty's Will, have certainly fulfilled this Prophecy, because a natural rose wouldn't form when a "Heaven" or a Solar System or even an entire galaxy and its
trillions of solar systems all blow up (explode).  It is rather the look of it, and this is exactly what NASA confirms.

 

Coincidence?  See 1,000s of examples [1].Quran's Stunning Numerical & Scientific Miracles.

  
Islam also thoroughly rejects as man-made lies the Trinity and Crucifixion [2].  Jesus was also thoroughly called slave of GOD [1] in both the OT and NT.


Quran:  All Bibles are mostly of corrupt [1] قول   (Quran 10:94 and 10s others discussed).  See also the 39+ members of trinity.  Jesus called every believer a Muslim in Luke 6:40.

  

John 5:30  "I cannot do anything on my own."  (i.e., Jesus could not perform a single Miracle without GOD sending it down to him first!).  I can not perform a single Miracle on my own!!  I am totally POWERLESS without Allah Almighty!
  

John 5:31  "if I (Jesus) bear witness of myself, then I would be a liar!" 

GOD didn't talk this way when He spoke to Moses.  GOD's testimony alone is always sufficient!  Jesus also bowed his face down to the ground, like we Muslims  (Isaiah 56:5: Muslim is the future believers' name, and sons and daughters of GOD titles will be "no more";    ; Jesus called every believer a Muslim in Luke 6:40)  Muslims do everyday, and prayed to GOD Almighty.