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Pierre Mignard, The Holy Trinity
Fresco (detail), Interior of Cupola of Église du Val-de-Grâce (1663)
Paris, France
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Today we celebrate the profound and inexhaustible mystery of one God in Three Persons: the Father, the Son, and the Holy Spirit. My hope this morning is to communicate something of the excitement, wonder, and awe that the self-revelation of the Triune God has elicited in successive generations of Christians down through the centuries.
A good place to begin is with God-in-himself. Try to imagine God as he was before he created the world. Even then God was one God in three Persons. The Son and the Spirit are not ways in which God appears to us and becomes present in his creation. Even before Jesus Christ is conceived in the womb of the Virgin Mary without the aid of a human father, he has already existed as the Son of his Father in heaven from before the beginning of creation. Even before the Holy Spirit descends on the Day of Pentecost, he, too, has already existed with the Father and the Son from before time began. Even if God had never created the world, he would still be one God in three Persons.
The Eastern Orthodox bishop Kallistos Ware writes: “There is in God genuine diversity as well as true unity. The Christian God is not just a unit but a union, not just unity but community. There is in God something analogous to 'society'. He is not a single person, loving himself alone, not a self-contained monad or 'The One'. He is triunity: three equal persons, each one dwelling in the other two by virtue of an unceasing movement of mutual love.” (The Orthodox Way, p. 33)
A bit further on, Ware unfolds the implications of this picture of the divine nature: “the doctrine of the Trinity means that we should think of God in terms that are dynamic rather than static. God is not just stillness, repose, unchanging perfection. For our images of the Trinitarian God we should look rather to the wind, to the running water, to the unresting flames of fire. A favourite analogy for the Trinity has always been that of three torches burning with a single flame.” (The Orthodox Way, p. 35)
C. S. Lewis makes much the same point: “in Christianity God is not a static thing … but a dynamic, pulsating activity, a life, almost a kind of drama. Almost, if you will not think me irreverent, a kind of dance.” (Mere Christianity, p. 95) Speaking for myself, I find these dynamic pictures of God’s inner life enormously appealing and exciting.
The Nicene Creed, which we recite at Mass almost every Sunday and major Holy Day, distills the wisdom of the first three centuries of the Church’s accumulated theological reflection on the Scriptures. The Creed uses two active verbs to describe the relations among the three divine Persons: begetting and proceeding. The Father begets the Son; the Holy Spirit proceeds—either from the Father alone, as in the original Greek version of the Creed; or, as in the later Western Latin version, from the Father and the Son.
The Creed further specifies that the Son is “begotten, not made.” We don’t use the words “beget” and “begotten” much in contemporary English. But they’re critical to describing the relationship between the first two Persons of the Trinity. Here again, C. S. Lewis comes to our aid, writing of the difference between begetting and making: “When you beget, you beget something of the same kind as yourself. A man begets human babies, a beaver begets little beavers and a bird begets eggs which turn into little birds. But when you make, you make something of a different kind from yourself. A bird makes a nest, a beaver builds a dam, a man makes a wireless set ...” (Mere Christianity, p. 86) It follows that what God begets is God.
When we say that the Son is the “only-begotten” of the Father, we’re to understand that he’s not a creature like us, with a beginning in time, but rather a second divine Person, co-equal and co-eternal with the Father. To quote C. S. Lewis again: “we must think of the Son always, so to speak, streaming forth from the Father, like light from a lamp, or heat from a fire, or thoughts from a mind. He is the self-expression of the Father — what the Father has to say.” (Mere Christianity, p. 94) Here Lewis is alluding to the New Testament image of the Son as the divine Logos or Word. Another way of saying that the Father begets the Son is that the Father speaks the Word.
The third Person, however, is not begotten but “proceeds.” Following Saint Augustine of Hippo, the Latin West has tended to understand the Holy Spirit as the personification of the love between the Father and the Son: a love so real that it becomes a third divine Person. So, the Western Church added the clause to the Nicene Creed saying that the Spirit proceeds “from the Father and the Son.” Eastern Orthodoxy has never accepted that formulation, however, and maintains that the Spirit proceeds from the Father alone. Resolving that dispute is above my pay grade. A point that I find helpful, however, is that in Hebrew, Greek, and Latin, the word “Spirit” means “breath,” “wind,” or “life.” One lovely Trinitarian analogy is that the Son is the Word the Father speaks, while the Spirit is the breath by which he speaks it.
A good place to begin is with God-in-himself. Try to imagine God as he was before he created the world. Even then God was one God in three Persons. The Son and the Spirit are not ways in which God appears to us and becomes present in his creation. Even before Jesus Christ is conceived in the womb of the Virgin Mary without the aid of a human father, he has already existed as the Son of his Father in heaven from before the beginning of creation. Even before the Holy Spirit descends on the Day of Pentecost, he, too, has already existed with the Father and the Son from before time began. Even if God had never created the world, he would still be one God in three Persons.
The Eastern Orthodox bishop Kallistos Ware writes: “There is in God genuine diversity as well as true unity. The Christian God is not just a unit but a union, not just unity but community. There is in God something analogous to 'society'. He is not a single person, loving himself alone, not a self-contained monad or 'The One'. He is triunity: three equal persons, each one dwelling in the other two by virtue of an unceasing movement of mutual love.” (The Orthodox Way, p. 33)
A bit further on, Ware unfolds the implications of this picture of the divine nature: “the doctrine of the Trinity means that we should think of God in terms that are dynamic rather than static. God is not just stillness, repose, unchanging perfection. For our images of the Trinitarian God we should look rather to the wind, to the running water, to the unresting flames of fire. A favourite analogy for the Trinity has always been that of three torches burning with a single flame.” (The Orthodox Way, p. 35)
C. S. Lewis makes much the same point: “in Christianity God is not a static thing … but a dynamic, pulsating activity, a life, almost a kind of drama. Almost, if you will not think me irreverent, a kind of dance.” (Mere Christianity, p. 95) Speaking for myself, I find these dynamic pictures of God’s inner life enormously appealing and exciting.
The Nicene Creed, which we recite at Mass almost every Sunday and major Holy Day, distills the wisdom of the first three centuries of the Church’s accumulated theological reflection on the Scriptures. The Creed uses two active verbs to describe the relations among the three divine Persons: begetting and proceeding. The Father begets the Son; the Holy Spirit proceeds—either from the Father alone, as in the original Greek version of the Creed; or, as in the later Western Latin version, from the Father and the Son.
The Creed further specifies that the Son is “begotten, not made.” We don’t use the words “beget” and “begotten” much in contemporary English. But they’re critical to describing the relationship between the first two Persons of the Trinity. Here again, C. S. Lewis comes to our aid, writing of the difference between begetting and making: “When you beget, you beget something of the same kind as yourself. A man begets human babies, a beaver begets little beavers and a bird begets eggs which turn into little birds. But when you make, you make something of a different kind from yourself. A bird makes a nest, a beaver builds a dam, a man makes a wireless set ...” (Mere Christianity, p. 86) It follows that what God begets is God.
When we say that the Son is the “only-begotten” of the Father, we’re to understand that he’s not a creature like us, with a beginning in time, but rather a second divine Person, co-equal and co-eternal with the Father. To quote C. S. Lewis again: “we must think of the Son always, so to speak, streaming forth from the Father, like light from a lamp, or heat from a fire, or thoughts from a mind. He is the self-expression of the Father — what the Father has to say.” (Mere Christianity, p. 94) Here Lewis is alluding to the New Testament image of the Son as the divine Logos or Word. Another way of saying that the Father begets the Son is that the Father speaks the Word.
The third Person, however, is not begotten but “proceeds.” Following Saint Augustine of Hippo, the Latin West has tended to understand the Holy Spirit as the personification of the love between the Father and the Son: a love so real that it becomes a third divine Person. So, the Western Church added the clause to the Nicene Creed saying that the Spirit proceeds “from the Father and the Son.” Eastern Orthodoxy has never accepted that formulation, however, and maintains that the Spirit proceeds from the Father alone. Resolving that dispute is above my pay grade. A point that I find helpful, however, is that in Hebrew, Greek, and Latin, the word “Spirit” means “breath,” “wind,” or “life.” One lovely Trinitarian analogy is that the Son is the Word the Father speaks, while the Spirit is the breath by which he speaks it.
So, the Son is begotten; the Spirit proceeds; the Father is the source and origin of both. Still, they’re not three Gods, but one God. No one of the three ever does anything without the other two. All three share the same divine essence or nature; all three act with the same divine will. They’re distinguished only by their mutual relations; that is, their distinct personal identities arise only through their relationships with one another.
The absolutely crucial point is that those relations are relations of Love. The Father pours himself out in begetting the Son and sending forth the Spirit; the Son and the Spirit offer everything they are back to the Father and to each other. This eternal round of going forth and returning is the “dance” to which C. S. Lewis refers in the passage I quoted earlier. The New Testament says that God is Love. That is, Love not only defines the relationships among the three Persons, but also constitutes the divine nature or essence they share as one God. Love is thus at the very heart of reality itself.
Well, it’s time to wrap up, and you may have noticed that I never got around to the role of the three Persons in creation, let alone redemption! But we’ve got the rest of the year to talk about that. Suffice it to say that God the Holy Trinity created us, and, when we fell away, the Son and the Spirit came into the world to reclaim us and gather us up into the Trinitarian life. The doctrine of the Holy Trinity thus teaches us not only who God is, but who he invites us to become—by sharing in his life and in his love for all eternity.
Sources
C. S. Lewis. Mere Christianity. Geoffrey Bles. 1952.
Kallistos Ware. The Orthodox Way. St. Vladimir’s Seminary Press. 1986.
Well, it’s time to wrap up, and you may have noticed that I never got around to the role of the three Persons in creation, let alone redemption! But we’ve got the rest of the year to talk about that. Suffice it to say that God the Holy Trinity created us, and, when we fell away, the Son and the Spirit came into the world to reclaim us and gather us up into the Trinitarian life. The doctrine of the Holy Trinity thus teaches us not only who God is, but who he invites us to become—by sharing in his life and in his love for all eternity.
Sources
C. S. Lewis. Mere Christianity. Geoffrey Bles. 1952.
Kallistos Ware. The Orthodox Way. St. Vladimir’s Seminary Press. 1986.

