What new testament book tells us of the work of the early church
The Old Testament tells of the old history of the nation of Israel. The New Testament tells of the history of Jesus and His Church.
Acts
The Book of Acts of the Apostles tells us about the early church and its faith. It also discusses the formation of the Church and the martyrdom of the early saints.
The Old Testament tells about the origin of mankind God's dealing with man over the ages and God's dealings with the nation of Israel. The New Testament tells about the life of Jesus, His death and resurrection and the beginning of the Christian Church
The Book of Acts, attributed as a sequel to Luke's Gospel, it considered the 'history book' of the early Church.
The New Testament.
The establishment and early history of Christ's church (and its members) is recorded in the New Testament book of Acts of the Apostles.
It Tells the story of Jesus
Roman Catholic AnswerThe Book of Acts tells about the establishment of the Church. It tells about the early Christian community, the first sermons, the earliest missions, the first martyrdom, the Church in Jerusalem. The foundation of the Church in Antioch is described in chapter 11; the first ecumenical Council (of which Vatican Council II was the latest) is described in chapter 13, etc.
This is the Old Testament
The old testament tells of the prophecies that have come, and those that wil come later on , they have come in the new testament.