Bede's Ecclesiastical History of England, ed. by A.M. Sellar, , at sacred-texts.com
NOR was the fame of the renowned Oswald confined to Britain, but, spreading rays of healing light even beyond the sea, reached also to Germany and Ireland. For the most reverend prelate, Acca,is wont to relate, that when, in his journey to Rome,he and his bishop Wilfrid stayed some time with Wilbrord,the holy archbishop of the Frisians, he often heard him tell of the wonders which had been wrought in that province at the relics of that most worshipful king. And he used to say that in Ireland, when, being yet only a priest, he led the life of a stranger and pilgrim for love of the eternal country, the fame of that king’s sanctity was already spread far and near in that island also. One of the miracles, among the rest, which he related, we have thought fit to insert in this our history.
"At the time," said he, "of the plague which made such widespread havoc in Britain and Ireland, among others, a certain scholar of the Scottish race was smitten with the disease, a man learned in the study of letters, but in no way careful or studious of his eternal salvation; who, seeing his death near at hand, began to fear and tremble lest, as soon as he was dead, he should be hurried away to the prison-house of Hell for his sins. He called me, for I was near, and trembling and sighing in his weakness, with a lamentable voice made his complaint to me, after this manner: ‘You see that my bodily distress increases, and that I am now reduced to the point of death. Nor do I question but that after the death of my body, I shall be immediately snatched away to the everlasting death of my soul, and cast into the torments of hell, since for a long time, amidst all my reading of divine books, I have suffered myself to be ensnared by sin, instead of keeping the commandments of God. But it is my resolve, if the Divine Mercy shall grant me a new term of life, to correct my sinful habits, and wholly to devote anew my mind and life to obedience to the Divine will. But I know that I have no merits of my own whereby to obtain a prolongation of life, nor can I hope to have it, unless it shall please God to forgive me, wretched and unworthy of pardon as I am, through the help of those who have faithfully served him. We have heard, and the report is widespread, that there was in your nation a king, of wonderful sanctity, called Oswald, the excellency of whose faith and virtue has been made famous even after his death by the working of many miracles. I beseech you, if you have any relics of his in your keeping, that you will bring them to me; if haply the Lord shall be pleased, through his merits, to have mercy on me.’ I answered, ‘I have indeed a part of the stake on which his head was set up by the pagans, when he was killed, and if you believe with steadfast heart, the Divine mercy may, through the merits of so great a man, both grant you a longer term of life here, and render you worthy to be admitted into eternal life.’ He answered immediately that he had entire faith therein. Then I blessed some water, and put into it a splinter of the aforesaid oak, and gave it to the sick man to drink. He presently found ease, and, recovering of his sickness, lived a long time after; and, being entirely converted to God in heart and deed, wherever he went, he spoke of the goodness of his merciful Creator, and the honour of His faithful servant."