The Spider - 29:46 "Argue with the people of the Book in the best way, except the unjust, and say: "We believe in what has been sent down to us and what has been sent down to you. Our God and your God is one. To Him alone have we submitted."
How should the people of the Book believe?
The Family Of Imran/3:64 "Say, "People of the Book! Come to a principle which is the same between us and you: "Let us serve none but Allah and associate with Him nothing in common, and let not one of us take the other as gods after Allah."If they refuse, say, "Bear witness, we are Muslims!"

The Table Spread/5:116 "Allah will say: "O Jesus son of Mary, did you say to the people, ´Take me and my mother as gods besides Allah´?"(Jesus) will reply: "You are great, it is not befitting me to say what I have no right to say. You would have known if I had said such a thing. You know what I think, but I do not know what you think. You know all mysteries."
The Table Spread/5:117 I said to them nothing but what You commanded me: ´Serve Allah, my Lord and your Lord.´ I was a witness to them as long as I was among them, and when You took my life, You became a watcher over them. You are the Witness of all things.

The Clear Evidence/98:4 Verily, those who were given the Book differed only after clear proof came to them.
The Clear Evidence/98:5 But they were asked to serve Him as monotheists whose religion belongs to Allah alone, and to observe prayer and pay the zakat. This is the true religion.

The Cow/2:135 "They said: "Become Jews or Christians so that you may be guided". Say: "No, we follow the monotheistic religion of Abraham. He was not of those who associate partners."
The Cow/2:136 We believe in Allah, in what has been sent down to us, in what was sent down to Abraham, Ishmael, Isaac, Jacob and their descendants, in what was given to Moses and Jesus, and in what was given to all the prophets by their Lord. We make no distinction between any of them. We are only those who submit to Him.
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.

The Family Of Imran/3:20 "If they dispute with you, say, "I and those who follow me have submitted ourselves to Allah."Say to those who have been given the Book and those who have not been given the Book, "Have you submitted?"If they submit, they will find the truth. If they turn away, your duty is only to announce. Allah sees the servants."

The Women/4:171 "People of the Book! Do not exceed the limits in your religion. Speak only the truth about Allah. Jesus Christ, son of Mary, is only a messenger of Allah and His word which He sent to Mary, and a life from Him. Believe in Allah and His messengers. Do not say, "There are three."Put an end to it for your own benefit. Allah alone is the only God. He is greater than having children. To Him belongs whatever is in the heavens and whatever is in the earth. Allah is sufficient as a Surrogate."