From the Book on the Faith,
addressed to Peter by St.
The Faith which the holy Patriarchs and Prophets
received from God before his Son was made Flesh, the Faith which the holy
Apostles heard from the Lord himself present in the Flesh, the Faith which
the same Apostles learnt by the teaching of the Holy Ghost not only to
preach by word of mouth, but also to leave behind them in their writings
for the healthful instruction of all that should come after, that Faith
teacheth that the Trinity, that is to say, the Father, the Son, and the
Holy Ghost, is but one God. But we could not truly call the Father,
the Son, and the Holy Ghost a Trinity, if One and the Selfsame Person were
named Father, Son, and Holy Ghost.
For if as the Being of the Father, the Son, and the
Holy Ghost is One Being, so were there but One Person, then were it untrue
to say that God is a Trinity. On the other hand, if, as the Persons
of the Father, the Son, and the Holy Ghost are distinguished One from
Another by that which is proper to Each, so were they diverse by
difference of nature, then were it untrue to say that God in One.
But since concerning the nature of the One True God, who is a Trinity, it
is the Truth to say that God is One, and the Truth to say that God is a
Trinity, therefore the True God is a Trinity in Persons, and an Unity in
Through the Oneness of nature all that the Father is is
in the Son and the Holy Ghost. All that the Son is is in the Father
and the Holy Ghost, and all that the Holy Ghost is is in the Father and
the Son. Of the Father, the Son, and the Holy Ghost, None is without
Other, None is before Other, None is greater than Other, None is mightier
than Other. The Father, as touching the One Divine Nature, is
neither before nor greater than the Son and the Holy Ghost: neither is it
possible that the Eternity and Infinity of the Son, whether as before or
greater, should be before or greater than the Eternity and Infinity of the
COLLECT OF THE HOLY TRINITY
Almighty and everlasting God, who has given unto us thy servants grace by
the confession of the true Faith, to acknowledge the glory of the eternal
Trinity, and in the power of the Divine Majesty to worship the Unity: we
beseech thee; that, thou would keep us stedfast in this Faith, and
evermore defend us from all adversities. Through Jesus Christ thy Son
our Lord. Who lives and reigns with thee, in the unity of the Holy Spirit, ever one God, unto the ages of ages. R. Amen.
The Hymn for Matins
from the Roman Breviary
O God of mercy passing thought,
Who hast the world contrived and wrought;
In might, essential Unity,
In Persons, blessed Trinity:
Uplift us with thine arm of might,
And let our hearts rise pure and bright,
And, ardent in God's praises, pay
The thanks we owe him every day.
Glory to thee, O Father, Lord,
And to thy Sole-begotten Word,
Both with the Holy Spirit One
While everlasting ages run. Amen.
Praise and glory unending be to God; as
to the Father, so to the Son, and likewise to the Holy Paraclete, both now
and through ages everlasting.
Yea, let praise and glory resound
from the lips of all men, both to the Father and to his Sole-Begotten, and
like praise be given for ever to the Holy Spirit.
Labels: Trinity Sunday, Trinitytide