I'm still studying through the Qur'an at this stage, but I can share some verses from Surah 2 Al-Baqara from the Qur'an in terms of the relationship between Islam, Judaism & Christianity.
Note: I'm not proselytizing, promoting or beginning a debate here. Rather sharing some insight with OcifferPls as per above.
62. Those who believe (in the Qur’an), and those who follow the Jewish (scriptures), and the Christians and the Sabians, any who believe in Allah and the Last Day, and work righteousness, shall have their reward with their Lord. On them shall be no fear, nor shall they grieve.
110. And be steadfast in prayer and regular in charity; and whatever good you send forth for your souls before you, you shall find it with Allah; for Allah sees well all that you do.
111. And they say: “None shall enter Paradise unless he be a Jew or a Christian.” Those are their (vain) desires. Say: “Produce your proof if you are truthful.”
112. Nay,-whoever submits his whole self to Allah and is a doer of good,- he will get his reward with his Lord; on such shall be no fear, nor shall they grieve.
113. The Jews say: “The Christians have nothing (to stand) upon;” and the Christians say: “The Jews have nothing (to stand) upon.” Yet they (profess to) study the (same) Book. Like unto their word is what those say who do not know; but Allah will judge between them in their quarrel on the Day of Judgment.
120. Never will the Jews or the Christians be satisfied with you unless you follow their form of religion. Say: “The Guidance of Allah, - that is the (only) Guidance.” If you were to follow their desires after the knowledge which has reached you, then you would find neither Protector nor Helper against Allah.
135. They say: “Become Jews or Christians if you would be guided (to salvation).” You say: “Nay! (I would rather) the Religion of Abraham the True, and he joined not gods with Allah.”
136. You say: “We believe in Allah, and the revelation given to us, and to Abraham, Isma’il, Isaac, Jacob, and the Tribes, and that given to Moses and Jesus, and that given to (all) Prophets from their Lord, we make no difference between one and another of them: and we bow to Allah.”
137. So if they believe as you believe, they are indeed on the right path; but if they turn back, it is they who are in schism( rupture); but Allah will suffice you as against them, and He is the All-Hearing, the All-Knowing.
138. (Our religion is) the Baptism of Allah, and who can baptize better than Allah? And it is He Whom we worship.
139. Say: Will you dispute with us about Allah, seeing that He is our Lord and your Lord; that we are responsible for our doings and you for yours; and that We are sincere (in our faith) in Him?
140. Or do you say that Abraham, Isma’il Isaac, Jacob and the Tribes were Jews or Christians? Say: Do you know better than Allah? Ah! Who is more unjust than those who conceal the testimony they have from Allah? but Allah is not unmindful of what you do!
141. That was a people that has passed away. They shall reap the fruit of what they did, and you of what you do! Of their merits there is no question in your case.