Belief in God as Father, Son and Holy Spirit is at the heart of our faith. Christians believe that Jesus is God’s Son. Jesus reveals to us that God is our Father, and that God is available to us through the Holy Spirit.
You won’t ever be asked if you completely understand all this. But you are asked whether you believe and trust. This is called faith. It is a different sort of knowledge. It is the knowledge of being known and loved, and of loving in return.
The Christian faith is not a human invention. There are signs of God’s existence and handiwork in creation for anyone to read (Acts 14.15–17). But we believe in the way we do because God has come to seek us out and has made himself known to us.
God has revealed himself through the Bible. God has revealed himself most clearly through the gift of his Son, Jesus Christ. God makes himself known personally to each believer through the work of the Holy Spirit.
We also uphold and declare our faith in the words of the creeds. The Apostles' Creed states:
I believe in God, the Father almighty,
creator of heaven and earth.
I believe in Jesus Christ, his only Son, our Lord,
who was conceived by the Holy Spirit,
born of the Virgin Mary,
suffered under Pontius Pilate,
was crucified, died, and was buried;
he descended to the dead.
On the third day he rose again;
he ascended into heaven,
he is seated at the right hand of the Father,
and he will come to judge the living and the dead.
I believe in the Holy Spirit,
the holy catholic Church,
the communion of saints,
the forgiveness of sins,
the resurrection of the body,
and the life everlasting.