I keep asking what these alleged divisions are and I never get an answer.
So, even though Paul in his epistles was ranting about the false teachers who were causing problems in some of the early gathering, you have never understood the problem.
OK, a little education for the knowledgeable Christian. Writing toward the end of the 4th century, Epiphanius stated that there were more than 80 different groups which called themselves Christian. After the orthodox beliefs became dominant owing to supported by the Empire, these 'heretical' groups were erased from history, though we have learned a bit by document discoveries during the 20th century, such as the Nag Hammadi collection found by an Egyptian farmer in 1945.
A few of the early churches:
Ebionites, the earliest group that might be seen as Christian, those trying to live as they understood the Messiah had taught while at the same time adhering to the traditional Jewish religious practices, which included male circumcision. James the Just was the leader of this group in Jerusalem.
Gnostics, those with
knowledge, from the Greek
gnosis. They saw the Tanakh as the work of an inferior deity and that only the Christ could lead the believers back to worship of the true God. To reach true salvation required a special knowledge that could only be understood by those who were willing to study the appropriate texts. As with other early beliefs, we know little about the Gnostics except for the attacks upon them by early orthodox writers such as Origen and Tertullian.
Docetics, a belief mirrored in John 1 that Jesus existed before becoming human. There were several groups falling into this category: those who believed the Jesus they knew was only an image, what we would call a hologram, then there were those who believed Jesus entered into a human body at the time of the baptism by John and left the human during the crucifixion. Matthew 27:46 and Mark 15:34.
One offspring of the Docetics were those we know as
Adoptionists, what they called themselves we don't know. The Jesus who walked the roads of Judea and preached was a human who had been 'adopted' by God and who really did die on the cross. The Jesus seen after the crucifixion was the image and not a physical being.
Marcionites, created by
Marcion of Sinope.
"Marcion believed that Jesus was the savior sent by God, and Paul the Apostle was his chief apostle, but he rejected the Hebrew Bible and the God of Israel. Marcionists believed that the wrathful Hebrew God was a separate and lower entity than the all-forgiving God of the New Testament.
Marcionism, similar to Gnosticism, depicted the God of the Old Testament as a tyrant or demiurge (see also God as the Devil). Marcion was the son of a bishop of Sinope in Pontus. About the middle of the second century (140–155) he traveled to Rome, where he joined the Syrian Gnostic Cerdo.[2]
Marcion's canon, possibly the first Christian canon ever compiled, consisted of eleven books: a gospel consisting of ten sections drawn from the Gospel of Luke; and ten Pauline epistles"
Arians, believed that Jesus was neither man nor God but instead more of a heavenly being greater than any angel but less than the supreme deity. Not quite adoptionism but almost - because what true deity could actually suffer a physical crucifixion. Origen of Alexandria, seen as one of the earliest expositors of Christian theology, wrote that Jesus was less than his Father, a belief of many early Christians before the development of trinitarian theology.