Authors of the Bible
The Bible contains 66 books, 39 in the Old Testament and 27 in the New Testament. The Bible was written by over 40 different authors including farmers, shepherds, doctors, fishermen, ministers, priests, philosophers, and kings.
Early in his ministry Jesus chose 12 men as apostles, men he intended to train to be "sent out" into the world. Their names were John and James (brothers), Peter and Andrew (brothers), Philip, Nathanael (also known as Bartholomew), Thomas, Matthew, James, Thaddaeus, Simon, and Judas. Judas betrayed Jesus and left the group of the apostles. Matthias replaced him. St. Paul was called as the Apostle to the Gentiles. Many Christian churches are named for these apostles.
A disciple is a follower of Jesus. All the apostles were followers of Jesus, but not all of Jesus' followers became apostles. All those who believe in Jesus are disciples.
A martyr is someone who suffers for a cause. Many Christians lost their lives because they were followers of Jesus. Stephen was the first Christian martyr. According to historians, all the apostles were martyrs except John who died a natural death. Many churches were built on the supposed sites of martyrs' graves. Many Christians still endure martyrdom today.
The church has assigned the title Saint to notable apostles, disciples, and martyrs. In reality, all believers are saints because they have been declared holy though the work of Christ.