From St. Patrick’s Confession:
Therefore, indeed, I cannot keep silent, nor would it be proper, so many favours and graces has the Lord deigned to bestow on me in the land of my captivity. For after chastisement from God, and recognizing him, our way to repay him is to exalt him and confess his wonders before every nation under heaven:
For there is no other God, nor ever was before, nor shall be hereafter, but God the Father, unbegotten and without beginning, in whom all things began, whose are all things, as we have been taught; and his son Jesus Christ, who manifestly always existed with the Father, before the beginning of time in the spirit with the Father, indescribably begotten before all things, and all things visible and invisible were made by him. He was made man, conquered death and was received into Heaven, to the Father who gave him all power over every name in Heaven and on Earth and in Hell, so that every tongue should confess that Jesus Christ is Lord and God, in whom we believe. And we look to his imminent coming again, the judge of the living and the dead, who will render to each according to his deeds. And he poured out his Holy Spirit on us in abundance, the gift and pledge of immortality, which makes the believers and the obedient into sons of God and co-heirs of Christ who is revealed, and we worship one God in the Trinity of holy name.
And from his breastplate:
I bind unto myself today, in the strong Name of the Trinity, by invocation of the same, the Three in One, and One in Three. I bind this day to me forever, by power of faith, Christ’s Incarnation; his baptism in the Jordan river; his death on cross for my salvation; his bursting from the spiced tomb; his riding up the heavenly way; his coming at the day of doom: I bind unto myself today.
I bind unto myself today the power of God to hold and lead, his eye to watch, his might to stay, his ear to hearken to my need; the wisdom of my God to teach, his hand to guide, his shield to ward; the word of God to give me speech, his heavenly host to be my guard.
I bind unto me these holy powers. Against all Satan’s spells and wiles, against false words of heresy, against the knowledge that defiles, against the heart’s idolatry, against the wizard’s evil craft, against the death-wound and the burning the choking wave and poisoned shaft, protect me, Christ, till thy returning.
Christ be with me, Christ within me, Christ behind me, Christ before me, Christ beside me, Christ to win me, Christ to comfort and restore me, Christ beneath me, Christ above me, Christ in quiet, Christ in danger, Christ in hearts of all that love me, Christ in mouth of friend and stranger. I bind unto myself the Name, the strong Name of the Trinity, by invocation of the same, the Three in One, and One in Three. Of whom all nature hath creation, eternal Father, Spirit, Word: praise to the Lord of my salvation!