Solemnity of the Most Holy Trinity

We always start our prayers by making the Sign of the Cross to remind us of the greatest mystery of our faith: the mystery of the Most Holy Trinity. It is not a mystery as seen on TV where CSI checks a crime scene, fingerprints and DNA evidence, witnesses: it’s something so big that it doesn’t fit into our head. We couldn’t have ever figured out on our own that God was Father, Son, and Holy Spirit. God revealed Himself to us as the Holy Trinity. Jesus came and said he was God’s Son, and that meant God was his Father. And Jesus promised to send his Spirit after he ascended into Heaven, so the Holy Spirit was God as well. This is something so mysterious that we believe it because Our Lord taught it to us and we believe in him.

Toward the end of today’s Gospel Our Lord tells the disciples to go out and baptize everyone in the name of the Father and of the Son and of the Holy Spirit. On the day of our baptism a priest or deacon poured water on our head three times, and each time he poured it he said I baptize you in the name of the Father … and of the Son … and of the Holy Spirit. And in that moment what St. Paul describes in the Second Reading today happened: we received the Holy Spirit who made us into adopted sons and daughters of God. And so whenever we start our prayers, we remember this day of our baptism by making the Sign of the Cross and remembering the Holy Trinity and how God came into our hearts through our baptism.

So when we pray this week, as we make the Sign of the Cross, let’s thank each Person of the Most Holy Trinity for wanting to come and be in our hearts and show us God as He truly is. Thank God the Father for creating us and revealing himself to Israel as the One True God. Thank God the Son for obeying his Heavenly Father and coming down and becoming man to show us that God was Our Father and to enable us to become his adopted children. Thank the Holy Spirit for transforming us into God’s adopted children and for bringing the Holy Trinity into our hearts and helping us to understand and live this great mystery of our faith.

Readings: Deuteronomy 4:32–34, 39–40; Psalm 33:4–6, 9, 18–20, 22; Romans 8:14–17; Matthew 28:16–20.

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