May 14: ST. MATTHIAS, APOSTLE. MASS PRAYERS AND READINGS. 8 min read May feasts May saints May 14: ST. MATTHIAS, APOSTLE. MASS PRAYERS AND READINGS. catholicsstrivingforholiness May 12, 2021 May 14: ST. MATTHIAS, APOSTLE. MASS PRAYERS AND READINGS.GOSPEL AND VIDEO COMMENTARY, 2ND READING OF LITURGY OF... Read More Read more about May 14: ST. MATTHIAS, APOSTLE. MASS PRAYERS AND READINGS.