June 28, 2023 

Memorial of Saint Irenaeus, Bishop and Martyr

Saint of the day

Saint Irenaeus (c.130-c.202)

Saint Irenaeus was a second-century bishop in what is now Lyons, France. As a prolific writer, he was a key figure in the many controversies that developed as the early Church sought to clarify her Trinitarian faith. His most famous work is a series of books called Against Heresies. In it Irenaeus stresses how crucial it was for the Church to safeguard her apostolic faith. This was the faith that Jesus had shared with the Twelve Apostles and that they had passed on to their successors. Irenaeus is particularly concerned about Gnosticism. This was one of the false teachings about Jesus that was circulating in the Church at that time. Irenaeus's courageous effort to defend apostolic faith against Gnosticism and other heresies can inspire us. We too need to speak the truth without fear, trusting always in God's steadfast love. (Taken from "Jesus Christ: God's Love Made Visible.")


Saint Irenaeus was a staunch supporter of Christian doctrine and spent considerable time thinking and analyzing doctrines pertaining to the Christian faith. His work reminds us of the importance of questioning and assessing the beliefs and ideas behind our faith.


Dear Jesus, help me to recognize the ways in which I can further explore knowledge of my beliefs.

Liturgical season information

Lectionary: 373

Place in Year: Ordinary Time

Color of decorations and priest's vestments:

Daily readings

Reading 1: Gn 15:1-12, 17-18

Responsorial Psalm: Ps 105:1-2, 3-4, 6-7, 8-9

Alleluia: Jn 15:4A, 5B

Gospel: Mt 7:15-20

View complete readings on USCCB.org
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