...When the feast was ended, Matthew followed Christ and was numbered by Him among the Apostles. Having received the Holy Ghost, on the day of Pentecost, he labored like the other Apostles for the conversion of the Jews. But before going to the district appointed to him as the field wherein he had to sow the word of God, he wrote his Gospel, as a short sketch of the life, sufferings and death of the Saviour, in order to impress better the teachings of the Apostles on the minds of the newly converted. This was immediately copied a great many times and preached by the other Apostles in those countries which they were to convert.
St. Matthew went to Ethiopia and thence into the neighboring states. He began his mission at Nadabar, the capital, where he met two notorious magicians named Zaroes and Arphaxad, who, by their hellish art, caused people to become sick, after which they cured them by magic, and thus gained the reputation of performing miracles, besides which, they gathered great riches. The holy Apostle discovered the fraudulent means by which they deceived the credulous, and he admonished the inhabitants of the city, not to fear those two men, as he was preaching the Gospel of Jesus Christ, in whose name, all such diabolical art would be destroyed. When the two magicians saw that they lost credit and gain by these remarks of the Apostle, they endeavored by new sorcery to frighten the people; but the Saint, making their fraud public, caused himself to be greatly esteemed, so that the people commenced to attend his sermons, and to take an interest in the faith he announced.
The many miracles which the Saint performed at length opened the eyes of the blind pagans; they recognized their error, and truth took possession of their hearts. What more then all else furthered the conversion of this nation, was the miracle by which the holy Apostle raised from the dead the royal princess. Her father, the king of Ethiopia, had called the magicians to his court and requested them to give back life to his child. The wicked deceivers used all their evil powers; but the spirits of hell which they invoked, could not reanimate the lifeless body. Hence the holy Apostle, was called, who going towards the dead, commanded her, in the name of Jesus Christ, to arise. The princess immediately arose, full of life and health, in presence of the king and all his courtiers. This miracle induced the king, with his whole court, to receive instruction in the Christian faith, and to be baptized with great solemnity. The example of the king was followed by all the people, and thus was paganism conquered in that country.
The holy Apostle then went into other cities, villages and hamlets, everywhere preaching the Gospel of Christ, and confirming it, according to the promise of his heavenly Master, by many and great miracles, which caused a great number of people to be converted. The holy life which the Saint led, aided him also greatly in impressing the heathens with the truth of his words. Besides his other virtues, they especially admired the rigor which he manifested towards himself. His whole sustenance consisted of herbs. Meat, wine, and all other things agreeable to the taste, he never touched. He allowed himself no rest; he was all day occupied in preaching and instructing, and passed the greater part of the night in prayer.
Incontestible [sic] writings prove that he preached the Gospel for twenty-three years, partly in Ethiopia, partly in other countries, at the same time founding almost innumerable Churches, and supplying them with priests and bishops, in order to preserve the faith he had taught. How much he had to endure in travelling through so many barbarous countries, how he was persecuted, how many thousands he converted, is known only to God; suffice it to say, he was truly an Apostle of Jesus Christ.
Finally, he ended his life by a glorious martyrdom before the Altar. It happened as follows: Iphigenia, the eldest daughter of the newly converted king of Ethiopia, had not only become a Christian, but also, with the knowledge and consent of the holy Apostle, had consecrated her virginity to the Almighty, after having frequently heard the Saint preach on the priceless value of purity, and exhort others to guard and preserve it. Her example was followed by many other virgins, who, choosing the princess as their superior, lived together and occupied their time in prayer and work. Hirtacus, who succeeded to the throne, asked the hand of the princess in marriage. The virgin consecrated to the Almighty refused him, saying that she had promised to be faithful to her heavenly bridegroom. The king, greatly provoked at this answer, called St. Matthew, as the instructor of Iphigenia, and requested him to induce her to consent to his offer. The Saint promised to give his advice to Iphigenia on the following day, in presence of the king. The next morning, in a sermon, he explained first, that matrimony, instituted by the Almighty, is in itself a lawful and holy state, which everyone who desired it might enter. After this, he began to praise the state of virginity and to demonstrate that it is much more agreeable and pleasing to God than the state of matrimony, adding very emphatically, that when any one, after due deliberation, had consecrated his purity to the Almighty, the vow could not be broken without great sin.
A servant, said he, among other illustrations, would deserve punishment if he dared to tempt the spouse of a king to break her marriage vow; much more punishable, then, would he be, who had the heart to entice a spouse of Christ to become faithless to her word. Hence, he concluded, as Iphigenia had promised herself to Christ, it was not allowed to rob Him of her, and persuade her to unite herself to a human being. Having admonished all present to remain constant in the true faith, even if it should cost their blood and life, he proceeded to the altar to perform the holy sacrifice of Mass. Hirtacus left the church, full of rage, and following the advice of some wicked people, sent some of his soldiers to kill St. Matthew. One of these, going towards the Saint, who was standing before the altar, thrust his spear into his body; and the Saint, sinking down, expired. Some maintain, that he was beheaded with an axe; but it is quite sure that he was killed while standing at the Altar, thus becoming himself a victim, at the moment when he was offering the pure sacrifice of the New Testament.