St. Matthew, one of the twelve Apostles, is the author of the first Gospel. This has been the constant tradition of the Church and is confirmed by the Gospel itself. He was the son of Alpheus and was called to be an Apostle while sitting in the tax collectors place at Capernaum. Before his conversion he was a publican, i.e., a tax collector by profession. He is to be identified with the “Levi” of Mark and Luke.
God of mercy you chose a tax collector, Saint Matthew, to share the dignity of the apostles. By his example and prayers help us to follow Christ and remain faithful in your service. We ask this through Our Lord Jesus Christ, your son, who lives and reigns with you and the Holy Spirit, one God, forever and ever.