In reply to Marcellina, who had asked what should be thought of those who to escape violence killed themselves, St. Ambrose replies by narrating the history of Pelagia, a virgin, with her mother and sister, and goes on to speak of the martyrdom of the blessed Sotheris, one of their own ancestors.
32. As I am drawing near the close of my address, you make a good suggestion, holy sister, that I should touch upon what we ought to think of the merits of those who have cast themselves down from a height, or have drowned themselves in a river, lest they should fall into the hands of persecutors, seeing that holy Scripture forbids a Christian to lay hands on himself. And indeed as regards virgins placed in the necessity of preserving their purity, we have a plain answer, seeing that there exists an instance of martyrdom.
33. Saint Pelagia lived formerly at Antioch, being about fifteen years old, a sister of virgins, and a virgin herself. She shut herself up at home at the first sound of persecution, seeing herself surrounded by those who would rob her of her faith and purity, in the absence of her mother and sisters, without any defence, but all the more filled with God. “What are we to do, unless,” says she to herself, “you, a captive of virginity, takest thought? I both wish and fear to die, for I meet not death but seek it. Let us die if we are allowed, or if they will not allow it, still let us die. God is not offended by a remedy against evil, and faith permits the act. In truth, if we think of the real meaning of the word, how can what is voluntary be violence? It is rather violence to wish to die and not to be able. And we do not fear any difficulty. For who is there who wishes to die and is not able to do so, when there are so many easy ways to death? For I can now rush upon the sacrilegious altars and overthrow them, and quench with my blood the kindled fires. I am not afraid that my right hand may fail to deliver the blow, or that my breast may shrink from the pain. I shall leave no sin to my flesh. I fear not that a sword will be wanting. I can die by my own weapons, I can die without the help of an executioner, in my mother's bosom.”
34. She is said to have adorned her head, and to have put on a bridal dress, so that one would say that she was going to a bridegroom, not to death. But when the hateful persecutors saw that they had lost the prey of her chastity, they began to seek her mother and sisters. But they, by a spiritual flight, already held the field of chastity, when, as on the one side, persecutors suddenly threatened them, and on the other, escape was shut off by an impetuous river, they said, what do we fear? See the water, what hinders us from being baptized? And this is the baptism whereby sins are forgiven, and kingdoms are sought. This is a baptism after which no one sins. Let the water receive us, which is wont to regenerate. Let the water receive us, which makes virgins. Let the water receive us, which opens heaven, protects the weak, hides death, makes martyrs. We pray You, God, Creator of all things, let not the water scatter our bodies, deprived of the breath of life; let not death separate our obsequies, whose lives affection has always conjoined; but let our constancy be one, our death one, and our burial also be one.
35. Having said these words, and having slightly girded up the bosom of their dress, to veil their modesty without impeding their steps, joining hands as though to lead a dance, they went forward to the middle of the river bed, directing their steps to where the stream was more violent, and the depth more abrupt. No one drew back, no one ceased to go on, no one tried where to place her steps, they were anxious only when they felt the ground, grieved when the water was shallow, and glad when it was deep. One could see the pious mother tightening her grasp, rejoicing in her pledges, afraid of a fall lest even the stream should carry off her daughters from her. “These victims, O Christ,” said she, “do I offer as leaders of chastity, guides on my journey, and companions of my sufferings.”
37. But who would have cause to wonder that they had such constancy while alive, seeing that even when dead they preserved the position of their bodies unmoved? The water did not lay bare their corpses, nor did the rapid course of the river roll them along. Moreover, the holy mother, though without sensation, still maintained her loving grasp, and held the sacred knot which she had tied, and loosed not her hold in death, that she who had paid her debt to religion might die leaving her piety as her heir. For those whom she had joined together with herself for martyrdom, she claimed even to the tomb.
38. But why use instances of people of another race to you, my sister, whom the inspiration of hereditary chastity has taught by descent from a martyred ancestor? For whence have you learned who had no one from whom to learn, living in the country, with no virgin companion, instructed by no teacher? You have played the part then not of a disciple, for this cannot be done without teaching, but of an heir of virtue.
39. For how could it come to pass that holy Sotheris should not have been the originator of your purpose, who is an ancestor of your race? Who, in an age of persecution, borne to the heights of suffering by the insults of slaves, gave to the executioner even her face, which is usually free from injury when the whole body is tortured, and rather beholds than suffers torments; so brave and patient that when she offered her tender cheeks to punishment, the executioner failed in striking before the martyr yielded under the injuries. She moved not her face, she turned not away her countenance, she uttered not a groan or a tear. Lastly, when she had overcome other kinds of punishment, she found the sword which she desired.
Source: Concerning Virgins (New Advent)