The Cow - 2:137
If they believe as you believe, they will be guided. If they turn away, they are the opposers. Allah is sufficient for you against them. He is All-Hearing, All-Knowing.
Most of the people of the Book do not believe:
The Family Of Imran/3:110
You are the best community for the people. You exhort to good and forbid evil and believe in Allah. It would have been good for the people of the Book if they had believed. Most of them have gone astray, though there are some among them who believe.
The Iron/57:16
Is it not time for the believers to open their hearts to the Message of Allah and the truth that has come down? Let them not be like those to whom the Book was given before; their hearts were hardened when a long time had passed over them. The majority of them are those who have gone astray.
The Iron/57:27
Then We sent Our messengers after them, one after another. We also sent Jesus the son of Mary and gave him the Gospel, and We put compassion and mercy in the hearts of those who followed him. But they invented for themselves a spirituality which We did not approve of them. Whereas We had asked them to follow only that which would please Allah. And they did not observe it properly. We gave the believers among them their reward, but many of them were astray.
The Table Spread/5:59
"Say: "People of the Book! Do you hate us because we believe in Allah and what has been sent down to us and what was sent down before?"