The Lorrha Missal (also called the Stowe Missal) was a book containing the texts of the mass, written in Ireland in the late 8th century. It begins in the same way as the Roman rite, but becomes a beautiful poem on the attributes of God.
The Lord be with you.
And also with you.
Lift up your hearts.
We lift them up to the Lord.
Let us give thanks to the Lord our God.
It good and right.
It is truly good, right and salutary
for us to give thanks to you always and everywhere,
holy Lord, almighty and eternal God,
through Christ our Lord;
with your only Son and the Holy Spirit you are
one immortal God,
incorruptible and unchangeable God,
invisible and faithful God,
wonderful and praiseworthy God,
honorable and mighty God,
most high and magnificent God,
living and true God,
wise and powerful God,
holy and glorious God,
great and good God,
awesome and peaceful God,
beautiful and righteous God,
pure and benevolent God,
blessed and just God,
pious and holy God,
not one singular person,
but one Trinity of substance.
We believe you.
We bless you.
We adore you.
We praise your name forever and ever
through him who is the salvation of the world,
through him who is the life of humanity,
through him who is the resurrection of the dead.
Through him the angels praise your majesty,
the dominions adore,
the powers of the highest heaven tremble,
the virtues of the blessed seraphim rejoice together.
We pray, grant that we may join our voices with theirs, confessing you and saying:
Holy, holy, holy Lord,
God of Sabaoth.
Heaven and earth are full of your glory.
Hosanna in the highest.
Blessed is he who comes in the name of the Lord.
Hosanna in the highest.
Blessed is he who came down from heaven that he might live on the earth, be made fully human, and gave his flesh as a sacrificial victim, and by his passion gave eternal life to those who believe.
Source: Lorrha-Stowe Missal, eighth century. Translated by Paul C. Stratman for A Collection of Prayers.
Original in Latin:
A facsimile of the book can be seen here: https://archive.org/details/stowemissalmsdii01cath
A Collection of Prayers 