In several places, the Qur'ān criticizes the Jews (not Christians) for how they misuse their scriptures, accusing them of perverting ( 2:75), concealing (6:61, 2:140) twisting their tongues when they read and even changing the words from their right places
However, the Qur'ān never once says that the written text has been modified, nor that the original scriptures are different than those today. Instead, the Qur'ān says a lot of very positive things about the Jewish and Christian scriptures: "Let the People of the Gospel judge by what Allah hath revealed therein. If any do fail to judge by (the light of) what Allah hath revealed, they are (no better than) those who rebel" (Sura Maidah 5:47) "Say: O People of the Book! Ye have no ground to stand upon unless ye stand fast by the Law, the Gospel, and all the revelation that has come to you from your Lord." (Sura Maidah 5:68)
"If you doubt what We have revealed to you, ask those who have read the Scriptures before you." (Sura Yunus 10:94)
"None can change His Words" (Sura Al-An'am 6:115).
If the previous scriptures were not manipulated, then why did Allah sent the Holy Prophet and the Quran down? I am just asking this because everybody says that Quran was sent down because the previous scriptures were changed.