Verily, those who conceal the clear proofs, evidences and the guidance, which We have sent down, after We have made it clear for the people in the Book, they are the ones cursed by Allâh and cursed by the cursers. (Al-Baqarah 2:159)
O people of the Scripture (Jews and Christians): "Why do you mix truth with falsehood and conceal the truth while you know?" (Aali Imran 3:71)
On another instance Allah swt has narrated mockery of some people from the Jews who twisted the words of Quran.Allah swt says:
Among those who are Jews, there are some who displace words from (their) right places and say: "We hear your word (O Muhammad SAW ) and disobey," and "Hear and let you (O Muhammad SAW) hear nothing"and "Râ'ina" with a twist of their tongues and as a mockery of the right religion. And if only they had said: "We hear and obey", and "Do make us understand," it would have been better for them, and more proper, but Allâh has cursed them for their disbelief, so they believe not except a few. (An-Nisa 4:46)
All these verses make it clear that tampering or editing of Holy texts is indeed a worst kind of misguidance and the believers are always good listeners and accept the message with open hearts without any tampering and editing.This fact has been narrated in the following verse of Quran:
The only saying of the faithful believers, when they are called to Allâh (His Words, the Qur'ân) and His Messenger (SAW), to judge between them, is that they say: "We hear and we obey." And such are the prosperous ones (who will live forever in Paradise). (An-Nur 24:51)
May Allah make us able to follow guidance of Allah and His prophet salal laho aliehi wasalam without any addition, subtraction, deletion and tampering Ameen.