A - First Council of Nicaea:
In the early centuries of Christianity there was nothing called “Jesus as Son of God” before the Roman Empire being converted to Christianity, but unfortunately they forced the priests to alter their believes from saying “Messenger of God” to be “Son of God”, similar to Romans ancient pagan religion.
The story is mentioned in the article of “First Council of Nicaea” from Wikipedia, where it mentions that following:
[The council did not create the doctrine of the deity of Christ as is sometimes claimed but it did settle to some degree the debate within the early Christian communities regarding the divinity of Christ. This idea of the divinity of Christ along with the idea of Christ as a “messenger from the one God” (The Father) had long existed in various parts of the Roman empire. The divinity of Christ had also been widely endorsed by the Christian community in the otherwise pagan city of Rome.
