However, the inference which is drawn is entirely false because there is a disconnection between it and your premises. Summarily, your premises do not match what the Catholic teaching of Filioque or Triadology is saying, and so the conclusion cannot possibly match either. Here’s why. The “will” or “mutual love” of the Father and the Son which is the person of the Holy Spirit is emphatically admitted by Catholic theology to be something categorically different than the “love” and “will” which is common to the divine essence, and thus all three divine Persons. For Aquinas, the essence of God is equal and the same between the three divine Persons, and thus the essential will of God is common to all three. However, since neither Aquinas nor Catholicism conceive of the spiration of the Holy Spirit to arise from this common will, Jay’s argument does not hold. On the contrary, the “will” by which the Spirit arises is according to a different mode of being in God, namely, that of “relations”. I would expand on this subject, but due to intended brevity, I will point readers to a helpful summary published by ICU (International Catholic University) on the internal divine relations. Most readers who are faintly familiar with the theology of Aquinas, as well as the basic Triadology of the Latin tradition, understand that in God there is one single and equal essence, nevertheless real distinctions exist in God according to a differing mode of being, which are the relations Father, Son, and Holy Spirit. Aquinas summarizes as follows: “Hence, there must be real distinction in God, not, indeed, according to that which is absolute—namely, essence, wherein there is supreme unity and simplicity—but according to that which is relative”. So if by “will” Catholic theologians mean the Spirit proceeds from the essential will of God (that which is equal to the divine essence), then Jay’s argument would successfully refute those theologians. However, if by “will” there is posited a different mode of distinction than that of the essence of God, then it does not so refute. For that reason, and that reason alone, we could entirely close up this argument as proceeding from a false premise. But we will continue.
Clearly then, when we speak of the analogy of intellect and will/love (see here and here for primers), we furnish a different category of conception from what is of the divine essence, and common to the three. For example, when we describe the Father contemplating, understanding, intellectualizing, and comprehending himself and speaking it expressly as “Word”, we are speaking of the hypostatic or relational mode of origination, not what is common in the divine essence. The Father generates the Son *by way* of expressing this intellectual self-understanding. Likewise, the Father and the Son, both of whom imprint each other by the bond of love (analogically speaking) which draws the will towards each Other (towards the Beloved), we are speaking of a hypostatic mode of the Spirit’s being, not the will/love common to the divine essence. We have to be careful to take note that this pertains to the analogy of hypostatic/relational modes of being, and not what is equal to or collapses into the single same divine essence.
We could also add some extra strength to this by pointing to the fact that the intellectual generation of the Son from the Father does not entail passivity in the Son. Now, why is that? It is because this intellectual generation is a single operation which exists in the intra-Trinitarian relational mode of being, and is not the “intellect” which inheres in the divine essence. In the begetting-begotten dynamic, it is not 2 operations which exist, but 1 single operation seen from the distinction of paternity and filiation. So the begetting-begotten operation *exists in both Father and Son*, and not some in the Father and some in the Son. In the same way, the operation of proceeding or “breathing” by which the Holy Spirit is originated is not an operation which exists somewhat in the Father, then another somewhat in the Son, and then another somewhat in the Spirit. Rather, it is a single operation of breathing in all three, where distinctions only exist according to the relational mode (paternity, filiation, and spiration).
Fr. Gilles Emery (O.P), Professor of Dogmatic Theology @ the Univ of Fribourg, puts it very succinctly when he writes: “The profession of the Holy Spirit is the procession of Love in person. When saying this, we must take care not to confuse the person of the Holy Spirit with the essential act of loving that is common to the three divine Persons. The Father, Son, and Holy Spirit are Love by essence, in the same degree to which they are God. St. Augustine was well aware of this difficult. On the one hand, the ‘substance’ of God is Love, and this substance is one and the same in the Father, Son, and Holy Spirit. On the other hand, the ‘Holy Spirit is properly called Charity’. Put otherwise, when one designates the Holy Spirit as Charity or Love in Person in the Trinity, one seeks to signify the ‘property’ of the Holy Spirit without confusing it with the Love that is an attribute common to the three Persons” (The Trinity, page 151)
Well put. It is precisely by Jay’s confusing the person of the Holy Spirit with the essential act of loving (i.e. will) that is common to the three divine persons that his article goes afoul.
But if Catholic theology does not teach that the Spirit of God originates from the essential will of God (i.e. the will of Father, Son, and Spirit which all share equally), then what business do it have in saying that the Spirit proceeds analogously according to the spiritual faculty of “will”? Firstly, as the links I’ve given show, this explanation or theologizing of the intra-Trinitarian relations according to the mode of intellect and will are analogies pertaining to that alone, and not positions on the divine essence of God. When we say the Son of God is Wisdom begotten from the Father in his Wisdom, we are not saying that the Son is the product of a Wisdom which is common to the divine essence. The word “Wisdom” here would be used as an analogy of the spiritual faculty of intellect in a Spiritual being. St. Augustine drew fleshed this out by differentiating how human fathers generate sons. There is a physical biology and reproductive process. There is no physical body in God, nor reproductive process in this way. Nevertheless, there is posited a reproductive process when we chant in the Creed, “And in one Lord Jesus Christ, the only-begotten Son of God, begotten of the Father before all worlds, Light of Light, very God of very God, begotten, not made, being of one substance with the Father”. Augustine spoke of this begetting operation as an intellectual, rather than physical, for obvious reasons. Plus, the Scripture tells us that the Son is the Word of God, and so the analogy is that just as Words which proceed from the mouth are a product of the mind thinking itself out expressly, so the Son of God is generating analogously. But if we were to accept Jay’s argument, then this analogy would also entail that the Son is a creature, since by gutting the sense of analogy and confusing it with the intellect of the divine essence we would be saying the Son is a product of God the most holy Trinity! In the same way, therefore, when we speak of the union of Father and Son, what draws one to the other in the paternal & filial “love” is according to the motion of will, as an analogy akin to intellect. Quite a separate thing than the essential will of the Trinity.