Holy Trinity

The Trinity is one God in three distinct Persons: the Father, the Son, and the Holy Spirit.

When Catholics say one God, we mean there is one divine being. Each of the three Persons is fully and eternally God. The Father has always loved the Son, the Son has always loved the Father, and the Holy Spirit is eternally one with them. Love belongs to who God is, even before anything was created.

Catechism of the Catholic Church, 253–256

How do the Father, Son, and Holy Spirit act in our lives?

Catholics often speak of creation, redemption, and sanctification when describing the Trinity. All three Persons act together in everything God does. Scripture helps us recognize each Person in that shared work.

Galatians 4:4–7 · Catechism, 257–260

The Trinity at Jesus’ baptism

Picture the scene at the Jordan River. Jesus, the Son, comes up from the water. The Holy Spirit descends upon him like a dove. The Father’s voice is heard from heaven calling Jesus his beloved Son. All three are present in the same moment, and the Gospel lets us recognize each through his relationship to the others.

Read Matthew 3:16–17

What happens when we pray?

Think of saying the Our Father. We can call God “Father” because Jesus, his Son, brings us into his relationship with the Father. The Holy Spirit dwells in us and helps us pray as God’s children. This is why the Church so often describes Christian prayer as prayer to the Father, through the Son, in the Holy Spirit.

Read Romans 8:14–17 · Why Pray

What does this mean for our hope of heaven?

The Catholic hope is to share forever in the love and life of the Father, the Son, and the Holy Spirit. Baptism begins that life in us now. Each time we make the Sign of the Cross, we name the three Persons into whose life we were baptized.

Read Matthew 28:19–20 · Baptism and our connection to heaven