Saul was born in Tarsus in Asia Minor. His family was of the line of Benjamin and possessed Roman citizenship (Rom 11:1, Acts 25:11) by virtue of his home city. He studied the law under the tutelage of Gamaliel (Acts 22:3) and learned the trade of tent-making, which he later used to support his ministry (Acts 18:3). 

Saul enters the New Testament in a negative light by approving of the stoning of Stephen, having become a zealous Pharisee. After this event “he made havoc of the church,” arresting every Christian man and woman he could find (Acts 8:1-3). The Lord Jesus picked Saul as “a chosen vessel unto me, to bear my name before the Gentiles, and kings, and the children of Israel” (Acts 9:15).

After Saul’s conversion, his name was changed to Paul (Acts 13:9). He went on to become the author of thirteen books of the New Testament, the founder of many churches in Asia Minor and Greece, a missionary to Rome, and a witness of Christ to many rulers, including the “household of Caesar.” During this time he was imprisoned, beaten, stoned, and even shipwrecked. After being arrested in Jerusalem, he appealed to Caesar and was sent to Rome. After arriving in Rome, he was imprisoned again and put under house arrest, finally being released until he was arrested in the persecution of Nero. Tradition says he was beheaded by Nero and buried outside the walls of Rome.

In 2009 the Vatican announced that excavations carried out in the Basilica of Saint Paul Outside the Walls had discovered a first or second-century tomb containing bone fragments, incense, and fragments of linen, which might be those of Paul. 

The writings of Paul have probably influenced Christian doctrine more than any other person after Christ. His letter to the church of Rome is the first systematic presentation of theology written. Other letters include instructions for church order, familial relations, qualifications for pastors and deacons, teachings against legalism and antinomianism, and an incipient form of later Gnosticism in the second century. His letters affirm the doctrines of salvation by grace through faith and election. His life of service to the Gospel also stands as an example for all Christians.