What is the definition of Christianity and Nazarene, what is the difference between them, is Christianity a religion founded by Paul, what are the most important differences between the three Christian denominations, and what is a summary of the agreement of the Isa (Jesus) Symposium regarding the books of the New Testament?

Christianity is the religion of the Christians, who claim to follow the Messiah, Jesus, peace be upon him. They were named thus after the village of Nazara (Nazareth) or from Jesus' saying to the disciples, "Who are my helpers to Allah?" They call themselves Christians, but this name was not mentioned in the Quran or the Sunnah.

The Messiah, Jesus, peace be upon him, was a prophet sent to the Children of Israel. He was sent as a caller to Allah, as described in the Quran in Surah Al Imran.

Paul was the first to distort the Christian religion. He introduced concepts such as abrogating the rulings of the Torah and the doctrine of crucifixion and redemption, influenced by Greek philosophy. His ideas persisted despite resistance.

Today, the Christian religion is divided into three main denominations:

1. Catholics: They follow the Pope in Rome, permit eating blood and strangled animals, believe that the Holy Spirit emanated from both the Father and the Son, and forbid divorce absolutely. 2. Orthodox: Eastern Christians, they believe that the Holy Spirit emanated from the Father only, permit divorce in cases of adultery, and do not follow a single leader. 3. Protestants: Followers of Martin Luther, they believe that forgiveness comes through remorse and repentance, not through indulgences. Each individual has the right to understand the Gospel. They forbid images, statues, and monasticism, and consider the Lord's Supper a memorial.

What must be believed is that what the Christians have today is distorted and false, and what they possess is from the constructs of their priests' and rabbis' thoughts. Islam has abrogated all previous legislations. Allah says: "And whoever desires a religion other than Islam, it will never be accepted from him, and in the Hereafter, he will be among the losers."