The New Testament is a collection of early Christian literature, which together with the Old Testament forms the Holy Scriptures of the Christian churches. In its present form the NT comprises 27 books, the main part of which is comprised by the four Gospels, which tell of the life and teaching of Jesus, and a number of letters and epistolary writings. In addition, the NT includes a book called The Acts of the Apostles, which tells the story of the first Christians, and the apocalyptic work The Revelation of John. The books of the NT were written in Greek