D.W. Bercot, The Early Christian View of War.
Despite the early Church’s condemnation of war and killing, it did not require a soldier to leave the army before being baptized as a Christian. The earliest example of this position is, of course, that of Cornelius, who was a military officer at the time he was baptized by Peter. We might speculate that Cornelius later resigned his military commission, but the Scriptures are silent about that.
Many commentators believe that the Church originally required soldiers to leave the army after their conversion but that it later softened its position with respect to that matter. In support of this view, they cite the fact that there is no evidence that any Christians served as soldiers before the time of Marcus Arelius (121-180 C.E.).1 However, the truth of the matter is that historical records are simply silent. There is no absolute proof that Christians did not serve in the Roman army before the reign of Marcus Aurelius. But given the strong pacifistic sentiment of the second and third-century Church, it is hard to believe that most would have softened their attitude towards military service. Surely, if there had been such a general change in the Church’s teaching, men like Tertullian, Origen, and Cyprian would have commented on it. Yet none of them give any indication that it had done so, and as has already been noted, all three were outspoken pacifists. But most important, they seem without question to represent the overwhelming sentiment of the Church as a whole during their time.
Actually, the refusal of the early Church to make any disciplinary rules about Christian soldiers is quite consistent with its position on most other issues of morality. It was very reluctant to make any new commandments or disciplinary rules that had not been handed down by Jesus or the apostles. Therefore, since the Scriptures do not specifically prohibit a Christian from serving as a soldier, it made no such prohibition. Besides, it should be remembered that the Roman Empire was at relative peace during much of this early period of Christianity, so it was quite possible that a Christian could spend his entire life in the army and never be required to shed blood or violate any other Christian principles. In fact, during the first and second centuries, soldiers primarily served in a capacity similar to modern police officers. Yet even in battle, a Christian would avoid shedding blood, albeit at the risk of his own life.
That this was the case is demonstrated by a letter purportedly written by the Emperor Marcus Aurelius concerning the conduct of Christian soldiers when he was fighting to defend the northern frontiers of the Roman Empire against Barbarian hordes. We cannot prove that that letter was actually written by that emperor, although Justin Martyr believed it to be genuine. He included a transcript of it in his first Apology, which was addressed to the Roman emperor, Antonius Pius, the adoptive father of Marcus Aurelius. This letter is the earliest historical reference to Christian soldiers, and it proves that even they were known for their position of nonviolence. In it, Marcus Aurelius describes how he and his troops were hemmed in by opposing forces and were about to perish from thirst. He then goes on to say:
Having then examined my own position, and my host, with respect to the vast hordes of the barbarian enemies, I quickly prayed to the gods of my country. When my prayers were unanswered, I summoned those among us who go by the name of Christians. After inquiring, I found that there were a considerable number of them and so I began to revile them. But my curses were quite undeserved, for I soon learned of their power firsthand. . . . they began the battle, not by preparing weapons, nor arms, nor bugles; for such preparation is hateful to them, on account of the God they bear in their conscience. Therefore it is probable that those whom we suppose to be atheists have God as their ruling power entrenched in their conscience. For having cast themselves on the ground, they prayed not only for me, but also for the whole army as it stood, that they might be delivered from the present thirst and famine. . . . And simultaneously with their casting themselves on the ground, and praying to God (a God of whom I am ignorant), water poured from heaven, upon us most refreshingly cool, but upon the enemies of Rome a withering hail.2
Roman historical records verify the account described in this letter, although they do not credit the prayers of the Christians for bringing the life-saving rain. This account is important, however, in that it demonstrates that the position of non-violence was maintained even by those Christians serving as soldiers.
Admittedly, it would be hard to serve as a soldier and not face situations involving a choice between serving Christ or serving Caesar. Early Christian writings cite many examples of Christian soldiers who eventually were commanded to perform acts that they could not do and keep their faith. Unfortunately, the grim alternative was nearly always death.3 Christian soldiers were rarely allowed simply to leave the army.
This may have been another reason why the Church did not insist that a soldier abandon the army upon his conversion. Of course, it is unlikely that many of those who became members of the early Christian community joined the Roman legions after their conversion. Since Rome rarely conscripted anyone into its armies, there would be little reason for a Christian voluntarily to enter a situation that would severely test his integrity to Christ and quite possibly cost him his life. [all bold added]
Footnotes