Anglican Use Collect for Trinity Sunday

Almighty and everlasting God,
you have given to us you servants grace,
by the confession of a true faith,
to acknowledge the glory of the eternal Trinity,
and in the power of your divine Majesty
to worship the Unity:
Keep us steadfast in this faith and worship,
and bring us at last
to see you in your one and eternal glory, O Father;
who with the Son and the Holy Spirit live and reign,
one God, for ever and ever. Amen.
Book of Divine Worship (and the Book of Common Prayer)

Trinity Sunday Morning Prayer

Father,
You sent your Word to bring us truth
and your Spirit to make us holy.
Through them we come to know the mystery of your life.
Help us to worship you, one God in three persons,
You reveal yourself in the depths of our being,
by proclaiming and living our faith in you.
Grant this through our Lord Jesus Christ, your Son,
who lives and reigns with you and the Holy Spirit,
one God for ever and ever. Amen

The Liturgy of the Hours

Catholic Collect For Trinity Sunday

Let us Pray
[to the one God, Father, Son, and Holy Spirit
that our lives may bear witness to our faith]
Father,
you sent your Word
to bring us truth
and your Spirit to make us holy.
Through them we come to know
the mystery of your life.
Help us to worship you,
one God in three Persons,
by proclaiming and living our faith in you.
We ask you this, Father, Son, and Holy Spirit,
one God, true and living, for ever and ever.