A Celtic liturgy

I believe, O God of all gods,

That Thou art the eternal Father of life;

I believe, O God of all gods,

That Thou art the eternal Father of love.

I believe, O God of all gods,

That Thou art the eternal Father of the saints;

I believe, O God of all gods,

That Thou art the eternal Father of each one.

I believe, O God of all gods,

That Thou art the eternal Father of all humanity;

I believe, O God of all gods,

That Thou art the eternal Father of the world.

I believe, O Lord and God of the peoples,

That Thou art the creator of the high heavens,

That Thou art the creator of the skies above,

That Thou art the creator of the oceans below.

I believe, O Lord and God of the peoples,

That Thou art He Who created my soul

and set its warp.

Who created my body from dust and from ashes,

Who gave to my body breath,

and to my soul its possession.

Father, bless to me my body,

Father, bless to me my soul,

Father, bless to me my life,

Father, bless to me my belief.

Father eternal and Lord of the peoples,

I believe that Thou hast remedied my soul in the Spirit

of healing,

That Thou gavest Thy loved Son in covenant for me,

That Thou hast purchased my soul with the precious blood

of Thy Son.

Father eternal and Lord of life,

I believe that Thou didst pour on me the Spirit of grace

at the bestowal of baptism.

Father eternal and Lord of humanity,

Enwrap Thou my body and my soul beloved,

Safeguard me this night in the sanctuary of Thy love,

Shelter me this night in the shelter of the saints.

Thou hast brought me up from last night

To the gracious light of this day,

Great joy to provide for my soul,

And to do excelling good to me.

Thanks be to Thee, Jesu Christ,

For the many gifts Thou hast bestowed on me,

Each day and night, each sea and land,

Each weather fair, each calm, each wild.

I am giving Thee worship with my whole life,

I am giving Thee assent with my whole power,

I am giving Thee praise with my whole tongue,

I am giving Thee honor with my whole utterance.

I am giving Thee reverence with my whole understanding,

I am giving Thee offering with my whole thought,

I am giving Thee praise with my whole fervor,

I am giving Thee humility in the blood of the Lamb.

I am giving Thee love with my whole devotion,

I am giving Thee kneeling with my whole desire,

I am giving Thee love with my whole heart,

I am giving Thee affection with my whole sense;

I am giving Thee my existence with my whole mind,

I am giving Thee my soul, O God of all gods.

My thought, my deed,

My word, my will,

My understanding, my intellect,

My way, my state.

I am beseeching Thee

To keep me from ill,

To keep me from hurt,

To keep me from harm;

To keep me from mischance,

To keep me from grief,

To keep me this night

In the nearness of Thy love.

May God shield me,

May God fill me,

May God keep me,

May God watch me.

May God bring me

To the land of peace,

To the country of the King,

To the peace of eternity.

Praise to the Father,

Praise to the Son,

Praise to the Spirit,

The Three in One.

As found in Esther de Waal, (editor), The Celtic Vision; Prayers, Blessings, Songs and Incantations from the Gaelic Tradition 
Photo by me of a stone Celtic cross on Iona