But those who were unjust changed it for a saying other than that which had been spoken to them, so We sent upon those who were unjust a pestilence from heaven, because they transgressed.
Qur'an 2:59
Do you then hope that they would believe in you, and a party from among them indeed used to hear the Word of Allah, then altered it after they had understood it, and they know (this). And when they meet those who believe they say: We believe, and when they are alone one with another they say: Do you talk to them of what Allah has disclosed to you that they may contend with you by this before your Lord? Do you not then understand? Do they not know that Allah knows what they keep secret and what they make known?
Qur'an 2:75-77
Nay! do you say that Ibrahim and Ismail and Yaqoub and the tribes were Jews or Christians? Say: Are you better knowing or Allah? And who is more unjust than he who conceals a testimony that he has from Allah? And Allah is not at all heedless of what you do.
Qur'an 2:140
(As for) those who take a small price for the covenant of Allah and their own oaths-- surely they shall have no portion in the hereafter, and Allah will not speak to them, nor will He look upon them on the day of resurrection nor will He purify them, and they shall have a painful chastisement. Most surely there is a party amongst those who distort the Book with their tongue that you may consider it to be (a part) of the Book, and they say, It is from Allah, while it is not from Allah, and they tell a lie against Allah whilst they know. It is not meet for a mortal that Allah should give him the Book and the wisdom and prophethood, then he should say to men: Be my servants rather than Allah's; but rather (he would say): Be worshipers of the Lord because of your teaching the Book and your reading (it yourselves).
Qur'an 3:77-79
And when Allah made a covenant with those who were given the Book: You shall certainly make it known to men and you shall not hide it; but they cast it behind their backs and took a small price for it; so evil is that which they buy.
Qur'an 3:187
Of those who are Jews (there are those who) alter words from their places and say: We have heard and we disobey and: Hear, may you not be made to hear! and: Raina, distorting (the word) with their tongues and taunting about religion; and if they had said (instead): We have heard and we obey, and hearken, and unzurna it would have been better for them and more upright; but Allah has cursed them on account of their unbelief, so they do not believe but a little.
Qur'an 4:46
But on account of their breaking their covenant We cursed them and made their hearts hard; they altered the words from their places and they neglected a portion of what they were reminded of; and you shall always discover treachery in them excepting a few of them; so pardon them and turn away; surely Allah loves those who do good (to others). And with those who say, We are Christians, We made a covenant, but they neglected a portion of what they were reminded of, therefore We excited among them enmity and hatred to the day of resurrection; and Allah will inform them of what they did. O followers of the Book! indeed Our Messenger has come to you making clear to you much of what you concealed of the Book and passing over much; indeed, there has come to you light and a clear Book from Allah;
Qur'an 5:13-15
O Messenger! let not those grieve you who strive together in hastening to unbelief from among those who say with their mouths: We believe, and their hearts do not believe, and from among those who are Jews; they are listeners for the sake of a lie, listeners for another people who have not come to you; they alter the words from their places, saying: If you are given this, take it, and if you are not given this, be cautious; and as for him whose temptation Allah desires, you cannot control anything for him with Allah. Those are they for whom Allah does not desire that He should purify their hearts; they shall have disgrace in this world, and they shall have a grievous chastisement in the hereafter.