Dispersion of the Apostles in the context of "Great Commission"

Early Christianity, otherwise called the Early Church, describes the historical era of the Christian religion up to the First Council of Nicaea in 325. Christianity spread from the Levant, across the Roman Empire, and beyond. Originally, this progression was closely connected to already established Jewish centers in the Holy Land and the Jewish diaspora throughout the Eastern Mediterranean. The first followers of Christianity were Jews who had converted to the faith, i.e. Jewish Christians, as well as Phoenicians, i.e. Lebanese Christians. Early Christianity contains the Apostolic Age and is followed by, and substantially overlaps with, the Patristic era.

The Apostolic sees claim to have been founded by one or more of the apostles of Jesus, who are said to have dispersed from Jerusalem sometime after the crucifixion of Jesus, c. 26–33, perhaps following the Great Commission. Early Christians gathered in small private houses, known as house churches, but a city's whole Christian community would also be called a "church"—the Greek noun ἐκκλησία (ekklesia) literally means "assembly", "gathering", or "congregation" but is translated as "church" in most English translations of the New Testament.

The ministry of Jesus, in the canonical gospels, begins with his baptism near the River Jordan by John the Baptist, and ends in Jerusalem in Judea, following the Last Supper with his disciples. The Gospel of Luke states that Jesus was "about 30 years of age" at the start of his ministry. A chronology of Jesus typically sets the date of the start of his ministry at around AD 27–29 and the end in the range AD 30–36.

Jesus' early Galilean ministry begins when after his baptism, he goes back to Galilee from his temptation in the Judaean Desert. In this early period, he preaches around Galilee and recruits his first disciples who begin to travel with him and eventually form the core of the early Church as it is believed that the apostles dispersed from Jerusalem to found the apostolic sees. The major Galilean ministry which begins in Matthew 8 includes the commissioning of the Twelve Apostles, and covers most of the ministry of Jesus in Galilee. The final Galilean ministry begins after the beheading of John the Baptist as Jesus prepares to go to Jerusalem.