Sancte Patrici, ora pro nobis

On the occasion of his first visit to Rathcrogan, the royal seat of the kings of Connaught, situated near Tulsk, in the County of Roscommon, a remarkable incident occurred, recorded in many of the authentic narratives of the saint's life. Close by the clear fountain of Clebach, not far from the royal abode, Patrick and his venerable companions had pitched their tents and at early dawn were chanting the praises of the Most High, when the two daughters of the Irish monarch — Ethne, the fair, and Fedelm, the ruddy — came thither, as was their wont, to bathe. Astonished at the vision that presented itself to them, the royal maidens cried out: "Who are ye, and whence do ye come? Are ye phantoms, or fairies, or friendly mortals?" St. Patrick said to them: "It were better you would adore and worship the one true God, whom we announce to you, than that you would satisfy your curiosity by such vain questions." And then Ethne broke forth into the questions:

"Who is God?"
"And where is God?"
"Where is His dwelling?"
"Has He sons and daughters?"
"Is He rich in silver and gold?"
"Is He everlasting? is He beautiful?"
"Are His daughters dear and lovely to the men of this world?"
"Is He on the heavens or on earth?"
"In the sea, in rivers, in mountains, in valleys?"
"Make Him known to us. How is He to be seen?"
"How is He to be loved? How is He to be found?"
"Is it in youth or is it in old age that He may be found?"

But St. Patrick, filled with the Holy Ghost, made answer:

"God, whom we announce to you, is the Ruler of all things."
"The God of heaven and earth, of the sea and the rivers."
"The God of the sun, and the moon, and all the stars."
"The God of the high mountains and of the low-lying valleys."
"The God who is above heaven, and in heaven, and under heaven."
"His dwelling is in heaven and earth, and the sea, and all therein."
"He gives breath to all."
"He gives life to all."
"He is over all."
"He upholds all."
"He gives light to the sun."
"He imparts splendour to the moon."
"He has made wells in the dry land, and islands in the ocean."
"He has appointed the stars to serve the greater lights."
"His Son is co-eternal and co-equal with Himself."
"The Son is not younger than the Father."
"And the Father is not older than the Son."
"And the Holy Ghost proceeds from them."
"The Father and the Son and the Holy Ghost are undivided."
"But I desire by Faith to unite you to the Heavenly King, as you are daughters of an earthly king."

[source]

Lúireach Phádraig

I bind to myself today
the strong virtue of the Invocation of the Trinity:
I believe the Trinity in the Unity,
The Creator of the Universe.

I bind to myself today
the virtue of the Incarnation of Christ with His Baptism,
the virtue of His crucifixion with His burial,
the virtue of His Resurrection with His Ascension,
the virtue of His coming on the Judgment Day.

I bind to myself today
the virtue of the love of seraphim,
in the obedience of angels,
in the hope of resurrection unto reward,
in prayers of Patriarchs,
in predictions of Prophets,
in preaching of Apostles,
in faith of Confessors,
in purity of holy Virgins,
in deeds of righteous men.

I bind to myself today
the power of Heaven,
the light of the sun,
the brightness of the moon,
the splendour of fire,
the flashing of lightning,
the swiftness of wind,
the depth of sea,
the stability of earth,
the compactness of rocks.

I bind to myself today
God's power to guide me,
God's might to uphold me,
God's wisdom to teach me,
God's eye to watch me,
God's ear to hear me,
God's word to give me speech,
God's hand to guide me,
God's way to lie before me,
God's shield to shelter me,
God's Host to secure me,
against the snares of demons,
against the seductions of vices,
against the lusts of nature,
against everyone who meditates injury to me,
whether far or near,
whether few or with many.

I invoke today all these virtues
against every hostile merciless power
which may assail my body and my soul,
against the incantations of false prophets,
against the black laws of heathenism,
against the false laws of heresy,
against the deceits of idolatry,
against the spells of women, and smiths, and druids,
against every knowledge that binds the soul of man.

Christ, protect me today
against every poison,
against burning,
against drowning,
against death-wound,
that I may receive abundant reward.

Christ with me, Christ before me,
Christ behind me, Christ within me,
Christ beneath me, Christ above me,
Christ at my right, Christ at my left,
Christ in the fort,
Christ in the chariot seat,
Christ in the stern,
Christ in the heart of everyone who thinks of me,
Christ in the mouth of everyone who speaks to me,
Christ in every eye that sees me,
Christ in every ear that hears me.

I bind to myself today
the strong virtue of an invocation of the Trinity:
I believe the Trinity in the Unity,
The Creator of the Universe.