The 39 books of the Old Testament and the 27 books of the New Testament are the only writings Christians consider fully inspired. The books that are in our present Old Testament were universally accepted at the time of Christ and endorsed by Him. In fact, there are nearly 300 quotations from the Old Testament books in the New Testament.
A number of books that are considered valuable but not inspired are found in the Roman Catholic and Anglican Bibles. These books are called the Apocrypha (which means “hidden,” “secret,” or “profound”). The Apocrypha was accepted by the council of Carthage, but was not accepted by many important church leaders, including Melito of Sardis, Tertullian, Origen, Athanasius, Cyril of Jerusalem, Epiphanius, Gregory of Nazianzus, Basil the Great, John Chrysostom, and Jerome. 1
Although the New Testament Canon was officially confirmed in its present and final form by the third council of Carthage in 397, the 27 documents it contains were accepted as authoritative from the very beginning.
The New Testament is solidly rooted in history. It revolves around the death, burial, and the resurrection of Jesus Christ. Not even the rationalist critics of the 19th century could find reason to question Pauline authorship of 1 Corinthians, and it has been acknowledged as the earliest written testimony of Christ’s resurrection. In 1 Corinthians 15 Paul declared:
For if the dead are not raised, not even Christ has been raised; and if Christ has not been rasied, your faith is worthless, you are still in your sins. Then those also who have fallen asleep in Christ have perished. If we have hope in Christ in this life only, we are of all men most to be pitied (vv. 16-19).
First-century Christians circulated documents—either written or approved by the apostles—which contained an authoritative explanation of the accounts concerning Jesus’ life and teaching. These documents often quoted from each other and presented the same gospel message from different perspectives and in different styles. Hundreds of other documents were written and circulated, but the church quickly rejected spurious documents and established the authority of those that were genuine.