The Cow - 2:213
Mankind were a single community. Allah sent messengers as bearers of glad tidings and warners and sent down with them the Book containing the truth so that they might judge between the people in matters wherein they differed. But those who were given the Book disputed about it out of envy among themselves after clear proofs had come to them. But Allah, by His permission, brought the believers to the truth about which they differed. Allah guides whom He wills/whosoever He wills.
The Qur'an declares the truth in matters which the people of the Book dispute:
The Table Spread/5:27
"Tell them the story of the two sons of Adam. They offered sacrifices, but one was accepted and the other was not. "I will kill you,"he said. "God accepts only the righteous,"he said."
The Cave/18:9
Do you think that those in the cave and the numbers related to them are anything other than our interesting proofs?
The Cave/18:13
We relate to you their story as the truth. They were young men who believed in their Lord. We increased their guidance.
Mary/19:34
Such was Jesus son of Mary. This is the truth of the matter about which they were in doubt.
The Criterion/25:33
We bring you the truth and the best explanation against every argument they throw at you.
The Stories/28:3
We have related to you a part of the story of Moses and Pharaoh in truth for a people who believe.
The Ants/27:76
This Qur´an explains many matters which the Children of Israel are still discussing.
The Table Spread/5:48
We have sent down to you this Book, which confirms the previous Books and replaces them, as a comprehensive truth, so judge between them by what Allah has sent down to you. Do not leave the truth that has come to you and follow their whim. We have appointed for each of you a law and a method, and if Allah had willed, He would have made you all one people. But He tests you with what He has given you. Compete in good deeds. To Allah is the return of all of you. He will inform you of the matters on which you differ.