Objections continued, as in Chapters vii.— x. Whether the Son is begotten of the Father's will? This virtually the same as whether once He was not? And used by the Ariansto introduce the latter question. The Regula Fidei answers it at once in the negative by contrary texts. The Ariansfollow the Valentinians in maintaining a precedent will; which really is only exercised by God towards creatures. Instances from Scripture. Inconsistency of Asterius. If the Son by will, there must be another Word before Him. If God is good, or exist, by His will, then is the Son by His will. If He willed to have reason or wisdom, then is His Word and Wisdom at His will. The Son is the Living Will, and has all titles which denote connaturality. That will which the Father has to the Son, the Son has to the Father. The Father wills the Son and the Son wills the Father
62 If then there is another Word of God, then be the Son originated by a word; but if there be not, as is the case, but all things by Him have come to be, which the Father has willed, does not this expose the many-headed craftiness of these men? That feeling shame at saying 'work,' and 'creature,' and 'God's Word was not before His generation,' yet in another way they assert that He is a creature, putting forward 'will,' and saying, 'Unless He has by will come to be, therefore God had a Son by necessity and against His good pleasure.' And who is it then who imposes necessity on Him, O men most wicked, who draw everything to the purpose of your heresy? For what is contrary to will they see; but what is greater and transcends it has escaped their perception. For as what is beside purpose is contrary to will, so what is according to nature transcends and precedes counselling. A man by counsel builds a house, but by nature he begets a son; and what is in building began to come into being at will, and is external to the maker; but the son is proper offspring of the father's essence, and is not external to him; wherefore neither does he counsel concerning him, lest he appear to counsel about himself. As far then as the Son transcends the creature, by so much does what is by nature transcend the will. And they, on hearing of Him, ought not to measure by will what is by nature; forgetting however that they are hearing about God's Son, they dare to apply human contrarieties in the instance of God, 'necessity' and 'beside purpose,' to be able thereby to deny that there is a true Son of God. For let them tell us themselves—that God is good and merciful, does this attach to Him by will or not? If by will, we must consider that He began to be good, and that His not being good is possible; for to counsel and choose implies an inclination two ways, and is incidental to a rational nature. But if it be too unseemly that He should be called good and merciful upon will, then what they have said themselves must be retorted on them—'therefore by necessity and not at His pleasure He is good;' and, 'who is it that imposes this necessity on Him?' But if it be unseemly to speak of necessity in the case of God, and therefore it is by nature that He is good, much more is He, and more truly, Father of the Son by nature and not by will.
63. Moreover let them answer us this:— (for against their shamelessness I wish to urge a further question, bold indeed, but with a religious intent; be propitious, O Lord!)— the Father Himself, does He exist, first having counselled, then being pleased, or before counselling? For since they are so bold in the instance of the Word, they must receive the like answer, that they may know that this their presumption reaches even to the Father Himself. If then they shall themselves take counsel about will, and say that even He is from will, what then was He before He counselled, or what gained He, as you consider, after counselling? But if such a question be unseemly and self-destructive, and shocking even to ask (for it is enough only to hear God's Name for us to know and understand that He is He that Is), will it not also be against reason to have parallel thoughts concerning the Word of God, and to make pretences of will and pleasure? For it is enough in like manner only to hear the Name of the Word, to know and understand that He who is God not by will, has not by will but by nature His own Word. And does it not surpass all conceivable madness, to entertain the thought only, that God Himself counsels and considers and chooses and proceeds to have a good pleasure, that He be not without Word and without Wisdom, but have both? For He seems to be considering about Himself, who counsels about what is proper to His Essence. There being then much blasphemy in such a thought, it will be religious to say that things originate have come to be 'by favour and will,' but the Son is not a work of will, nor has come after, as the creation, but is by nature the own Offspring of God's Essence. For being the own Word of the Father, He allows us not to account of will as before Himself, since He is Himself the Father's Living Counsel, and Power, and Framer of the things which seemed good to the Father. And this is what He says of Himself in the Proverbs; 'Counsel is mine and security, mine is understanding, and mine strength.' For as, although Himself the 'Understanding,' in which He prepared the heavens, and Himself 'Strength and Power' (for Christ is 'God's Power and God's Wisdom'), He here has altered the terms and said, 'Mine is understanding' and 'Mine strength,' so while He says, 'Mine is counsel,' He must Himself be the Living Counsel of the Father; as we have learned from the Prophet also, that He becomes 'the Angel of great Counsel,' and was called the good pleasure of the Father; for thus we must refute them, using human illustrations concerning God.
64. Therefore if the works subsist 'by will and favour,' and the whole creature is made 'at God's good pleasure,' and Paul was called to be an Apostle 'by the will of God,' and our calling has come about 'by His good pleasure and will,' and all things have come into being through the Word, He is external to the things which have come to be by will, but rather is Himself the Living Counsel of the Father, by which all these things have come to be; by which David also gives thanks in the seventy-second Psalm. 'You have holden me by my right hand; You shall guide me with Your Counsel. ' How then can the Word, being the Counsel and Good Pleasure of the Father, come into being Himself 'by good pleasure and will,' like every one else? Unless, as I said before, in their madness they repeat that He has come into being through Himself, or through some other. Who then is it through whom He has come to be? Let them fashion another Word; and let them name another Christ, rivalling the doctrine of Valentinus; for Scripture it is not. And though they fashion another, yet assuredly he too comes into being through some one; and so, while we are thus reckoning up and investigating the succession of them, the many-headed heresy of the Atheists is discovered to issue in polytheism and madness unlimited; in the which, wishing the Son to be a creature and from nothing, they imply the same thing in other words by pretending the words will and pleasure, which rightly belong to things originate and creatures. Is it not irreligious then to impute the characteristics of things originate to the Framer of all? And is it not blasphemous to say that will was in the Father before the Word? For if will precedes in the Father, the Son's words are not true, 'I in the Father.' or even if He is in the Father, yet He will hold but a second place, and it became Him not to say 'I in the Father,' since will was before Him, in which all things were brought into being and He Himself subsisted, as you hold. For though He excel in glory, He is not the less one of the things which by will come into being. And, as we have said before, if it be so, how is He Lord and they servants? But He is Lord of all, because He is one with the Father's Lordship; and the creation is all in bondage, since it is external to the Oneness of the Father, and, whereas it once was not, was brought to be.
Source: Four Discourses Against the Arians (New Advent)