Peter, his brother Andrew, James the son of Zebedee and his brother John are among the best known original apostles of Jesus Christ. Scriptural accounts suggest that of the twelve, Peter, James and John were the closest to the Messiah.
The Gospels of Matthew, Mark and Luke tend to divide the apostles into three groups. The first group, Peter, Andrew, James and John, were all fishermen. The second group consisted of Philip, Bartholomew, Matthew the tax collector and Thomas.
Least is known about the third set of disciples. This group included James the son of Alphaeus, Simon the Zealot, Judas the son of James and Judas Iscariot. Peter, Philip and James the son of Alphaeus appear to have been the leaders of their respective groups.
Peter is actually a nickname assigned by Jesus. He was the most prominent of all the apostles and was originally named Simon. A comparison of the names as listed in the first three gospels reveals other alternate references.
Judas, son of James was also known both as Thaddaeus and Lebbaeus. Simon the Zealot was known as Simon the Canaanite. Judas Iscariot was replaced by Matthias after betraying Jesus and committing suicide, but some Bible teachers believe the Apostle Paul was God’s true choice as a replacement.