You are one God in three Persons.
You are a Person, O God the Father.
You are a Person, O God the Son.
You are a Person, O God the Holy Spirit.
You are three equal and distinct Persons, yet not three Gods, for God is one: one in nature, in essence, and three in Persons.
You are a Person, O God the Father, because you are a substance who exists of yourself within the divine nature, and you act and work. Have mercy on us.
You are a Person, O God the Son, because you are a substance who exists of yourself, begotten within the divine nature, and you act and work.
You are a Person, O God the Holy Spirit, because you are a substance who exists of yourself, proceeding from the Person of the Father and from the Person of the Son, and you act and work.
Yet there are not three substances, but one single substance.
You, O God, are incomprehensible: no intellect that you have created can, through all its efforts, come to understand you, neither your nature nor your judgements and thoughts. In order for one to understand you, it would be necessary to be God like you, which is impossible, for you alone are God, and besides you there can be no other, not even one like you.
You are God, Lord of heaven and earth; all things are under your dominion, and in all things, you seek to do your will for your glory. We are yours and you are ours; to you alone we always give honour and glory, to you yourself, as you will never give your honour to another.