[Remember] when the angels said, "O Mary, indeed God gives you good tidings of a word from Him, whose name will be the Messiah, Jesus, the son of Mary - distinguished in this world and the Hereafter and among those brought near [to God]. He will speak to the people in the cradle and in maturity and will be of the righteous."
And [thus] Mary, the daughter of 'Imran, who guarded her chastity, so We breathed into her through Our Spirit, and she believed in the words of her Lord and His Scriptures and was of the devoutly obedient.
So We responded to him, and We gave to him John, and amended for him his wife. Indeed, they used to hasten to good deeds and supplicate Us in hope and fear, and they were to Us humbly submissive.
19:12 - 14, Qur'an
[So We] said, "O John, take the Scripture with determination." And We gave him judgement [while yet] a boy and affection from Us and purity, and he was fearing of God and dutiful to his parents, and he was not a disobedient tyrant.
[So] say [likewise], "We have believed in God and what has been revealed to us and what has been revealed to Abraham and Ishmael and Isaac and Jacob and the [twelve] tribes [of Israel] and what was given to Moses and Jesus and what was given to the prophets from their Lord. We make no distinction between any of them, and we are in submission to Him."
And if only they upheld [the law of] the Torah, the Gospel, and what has been revealed to them from their Lord, they would have consumed [provision] from above them and from beneath their feet. Among them are a moderate community, but many of them - evil is that which they do -
[For] the example of those who were entrusted with the Torah and then did not take it on is like that of a donkey who carries volumes [of books]. Wretched is the example of the people who deny the signs of God. And God does not guide the wrongdoing people -
5:42 - 44, Qur'an
[For they are] avid listeners to falsehood, devourers of [what is] unlawful. So if they come to you, judge between them or turn away from them. And if you turn away from them - never will they harm you at all. And if you judge, judge between them with justice. Indeed, God loves those who act justly. But how is it that they come to you for judgement while they have the Torah, in which is the judgement of God? Then they turn away, [even] after that; but those are not [in fact] believers. Indeed, We sent down the Torah, in which was guidance and light. The prophets who submitted [to God] judged by it for the Jews, as did the rabbis and scholars by that with which they were entrusted of the Scripture of God, and they were witnesses thereto. So do not fear the people but fear Me, and do not exchange My verses for a small price. And whoever does not judge by what God has revealed [therein] - then it is those who are the disbelievers.
And We ordained for them therein a life for a life, an eye for an eye, a nose for a nose, an ear for an ear, a tooth for a tooth [as legal retribution], and for wounds is legal retribution. But whoever gives [up his right as] charity, it is an expiation for him. And whoever does not judge by what God has revealed - then it is those who are the wrongdoers.
And We sent, following in their footsteps, Jesus, the son of Mary, confirming that which came before him in the Torah; and We gave him the Gospel, in which was guidance and light and confirming that which preceded it of the Torah as guidance and instruction for those who fear [God].
[For] indeed, We have revealed to you [O Muhammad], as We revealed to Noah and the prophets after him. And We revealed to Abraham, Ishmael, Isaac, Jacob, the [twelve] tribes [of Israel], Jesus, Job, Jonah, Aaron, and Solomon, and to David We gave the Book [of Psalms].
[So] say, "O People of the Scripture, you are [standing] on nothing until you uphold [the law of] the Torah, the Gospel, and what has been revealed to you from your Lord." And that which has been revealed to you [O Muhammad] from your Lord will surely increase many of them in transgression and disbelief. So do not grieve over the disbelieving people.
3:113 - 115, Qur'an
[But] they are not [all] the same; among the People of the Scripture is a community standing [in obedience], reciting the verses of God during periods of the night and prostrating [in prayer]. They believe in God and the Last Day, and they enjoin what is right and forbid what is wrong and hasten to good deeds. And those are among the righteous. And whatever good they do - never will it be removed from them. And God is Knowing of those who fear [Him].
And indeed, among the People of the Scripture are those who believe in God and what was revealed to you [O Muhammad] and what was revealed to them, [being] humbly submissive to God. They do not exchange the verses of God for a small price. Those will have their reward with their Lord. Indeed, God is swift in account.
2 Chronicles 9:29, Torah
[For] the rest of the acts of Solomon, first and last, [are] they not written in the Book of Nathan the prophet, and in the Prophecy of Ahijah the Shilonite, and in the Visions of Iddo the seer against Jeroboam, the son of Nebat?
Revelation 22:19, Gospel
[Whereby] if any man will take away from the words of the Book of this prophecy, God will take away his part out of the Book of Life, and out of the holy city, and [from] the things which are written in this Book."
[2 Ezra 12:36 - 38], Torah
[For they said,] "You only have been meet to know this secret of the Highest. Therefore write all these things that you have seen in a Book, and hide them; and teach them to the wise of the people, whose hearts you know may comprehend and keep these secrets."
2:159 - 160, Qur'an
[But] indeed, those who conceal what We sent down of clear proofs and guidance after We made it clear for the people in the Scripture - those are cursed by God and cursed by those who curse, except for those who repent and correct themselves and make evident [what they concealed]. Those - I will accept their repentance, and I am the Accepting of repentance, the Merciful.
[So] O People of the Scripture, there has come to you Our messenger making clear to you much of what you used to conceal of the Scripture and overlooking much. There has come to you from God a light and a clear Book.
2:41 - 42, Qur'an
[So] believe in what I have sent down confirming that which is [already] with you, and be not the first to disbelieve in it. And do not exchange My verses for a small price, and fear [only] Me. And do not mix the truth with falsehood or conceal the truth while you know [it].
Jeremiah 23:31 - 32, Torah
[God said,] "Behold, I [am] against the prophets, who use their tongues and say, 'He says.' Behold, I [am] against those who prophesy false dreams, and tell them, and cause My people to err by their lies, and by their lightness; yet I did not send them, nor command them, therefore they will not profit this people at all," the Lord says.
Ezekiel 13:6 - 7, Torah
[Rather,] they have seen vanity and lying divination, saying, "The Lord says," and the Lord has not sent them, and they have made [others] hope that they would confirm the word. Have you not seen a vain vision, and have you not spoken a lying divination, whereas you say, "The Lord says [it];" although I have not spoken?
[So] indeed, there is among them a party who alter the Scripture with their tongues so you may think it is from the Scripture, but it is not from the Scripture. And they say, "This is from God," but it is not from God. And they speak untruth about God while they know.
[Book of Enoch 98:15], Torah
[So] woe to you who write lying words, and the words of the impious, for they write their lies so that men may hear and continue their folly. And they will not have peace but will die a sudden death.
Revelation 22:18, Gospel
For I testify to every man who hears the words of the prophecy of this Book, "If any man will add to these things, God will add to him the plagues that are written in this Book."
So woe to those who write the "scripture" with their own hands, then say, "This is from God," in order to exchange it for a small price. Woe to them for what their hands have written and woe to them for what they earn -
3:70 - 71, Qur'an
[So] O People of the Scripture, why do you disbelieve in the verses of God while you witness [to their truth]? [And] O People of the Scripture, why do you confuse the truth with falsehood?
22:52 - 54, Qur'an
[For] We did not send before you any messenger or prophet except that when he spoke [or recited], Satan threw into it [some misunderstanding]. But God abolishes that which Satan throws in; then God makes precise His verses. And God is Knowing and Wise. [That is] so He may make what Satan throws in a trial for those within whose hearts is disease and those hard of heart. And indeed, the wrongdoers are in extreme dissension. And so those who were given knowledge may know that it is the truth from your Lord and [therefore] believe in it, and their hearts humbly submit to it. And indeed is God the Guide of those who have believed to a straight path.
And [thus] We have revealed to you [O Muhammad], the Book in truth, confirming that which preceded it of the Scripture and as a criterion over it. So judge between them by what God has revealed and do not follow their inclinations away from what has come to you of the truth. To each of you We prescribed a law and a method. Had God willed, He would have made you one nation [united in religion], but [He intended] to test you in what He has given you; so race to [all that is] good. To God is your return all together, and He will [then] inform you concerning that over which you used to differ.
Acts 18:9 - 11, Gospel
[When] the Lord spoke to Paul in the night by a vision, "Do not be afraid, but speak, and do not hold your peace. For I am with you, and no man will set on you to hurt you, for I have many people in this city." And he continued [there] a year and six months, teaching the word of God among them.
7:175 - 176, Qur'an
But he detached himself from [Our signs]; so Satan pursued him, and he became of the deviators. And if We had willed, We could have elevated him thereby, but he adhered [instead] to the earth and followed his own desire. So his example is like that of the dog: if you chase him, he pants, or if you leave him, he [still] pants. That is the example of the people who denied Our signs. So relate the story that perhaps they will give thought -
[For] God said, "O Jesus, indeed I will take your soul and raise you to Myself and purify you from those who disbelieve and make those who follow you superior to those who disbelieve until the Day of Resurrection. Then to Me is your return, and I will judge between you concerning that in which you used to differ."
[So] say, "O People of the Scripture, do not exceed limits in your religion beyond the truth and do not follow the inclinations of a people who had gone astray before and misled many and have strayed from the right way -"
1 Corinthians 7:12, Gospel
[Like Paul, who followed his own desire and said, "Now] to the rest I speak, not the Lord, 'If any brother has a wife who does not believe, and she is pleased to dwell with him, let him not put her away.'
[So] who is more unjust than one who invents a lie about God or says, "It has been inspired to me," while nothing has been inspired to him, and one who says, "I will reveal like what God revealed." And if you could but see when the wrongdoers are in the overwhelming pangs of death while the angels extend their hands, [saying], "Discharge your souls! Today you will be awarded the punishment of [extreme] humiliation for what you used to say against God other than the truth and [that] you were, toward His verses, being arrogant."
[So] indeed, those who inject deviation into Our verses are not concealed from Us. So, is he who is cast into the Fire better or he who comes secure on the Day of Resurrection? Do whatever you will; indeed, He is Seeing of what you do.
See Crucifixion for more details