Thomas Aquinas, Summa Theologiae

Objection 1: It would seem that the procession of love in God is generation. For what proceeds by way of likeness of nature among living things is said to be generated and born. But what proceeds in God by way of love proceeds in the likeness of nature; otherwise it would be extraneous to the divine nature, and would be an external procession. Therefore what proceeds in God by way of love, proceeds as generated and born.

Objection 2: Further, as similitude is of the nature of the word, so does it belong to love. Hence it is said, that "every beast loves its like" (Ecclus. 13:19). Therefore if the Word is begotten and born by way of likeness, it seems becoming that love should proceed by way of generation.

Objection 3: Further, what is not in any species is not in the genus. So if there is a procession of love in God, there ought to be some special name besides this common name of procession. But no other name is applicable but generation. Therefore the procession of love in God is generation.

On the contrary, Were this true, it would follow that the Holy Ghost Who proceeds as love, would proceed as begotten; which is against the statement of Athanasius: "The Holy Ghost is from the Father and the Son, not made, nor begotten, but proceeding."

I answer that, The procession of love in God ought not to be called generation. In evidence whereof we must consider that the intellect and the will differ in this respect, that the intellect is made actual by the object understood residing according to its own likeness in the intellect; whereas the will is made actual, not by any similitude of the object willed within it, but by its having a certain inclination to the thing willed. Thus the procession of the intellect is by way of similitude, and is called generation, because every generator begets its own like; whereas the procession of the will is not by way of similitude, but rather by way of impulse and movement towards an object.

So what proceeds in God by way of love, does not proceed as begotten, or as son, but proceeds rather as spirit; which name expresses a certain vital movement and impulse, accordingly as anyone is described as moved or impelled by love to perform an action.

Reply to Objection 1: All that exists in God is one with the divine nature. Hence the proper notion of this or that procession, by which one procession is distinguished from another, cannot be on the part of this unity: but the proper notion of this or that procession must be taken from the order of one procession to another; which order is derived from the nature of the will and intellect. Hence, each procession in God takes its name from the proper notion of will and intellect; the name being imposed to signify what its nature really is; and so it is that the Person proceeding as love receives the divine nature, but is not said to be born.

Reply to Objection 2: Likeness belongs in a different way to the word and to love. It belongs to the word as being the likeness of the object understood, as the thing generated is the likeness of the generator; but it belongs to love, not as though love itself were a likeness, but because likeness is the principle of loving. Thus it does not follow that love is begotten, but that the one begotten is the principle of love.

Reply to Objection 3: We can name God only from creatures (Question 13, Article 1). As in creatures generation is the only principle of communication of nature, procession in God has no proper or special name, except that of generation. Hence the procession which is not generation has remained without a special name; but it can be called spiration, as it is the procession of the Spirit.

Articulus 4

Argumentum 1

Ad quartum sic proceditur. Videtur quod processio amoris in divinis sit generatio. Quod enim procedit in similitudine naturae in viventibus, dicitur generatum et nascens. Sed id quod procedit in divinis per modum amoris, procedit in similitudine naturae, alias esset extraneum a natura divina, et sic esset processio ad extra. Ergo quod procedit in divinis per modum amoris, procedit ut genitum et nascens.

Argumentum 2

Praeterea, sicut similitudo est de ratione verbi, ita est etiam de ratione amoris, unde dicitur Eccli. XIII, quod omne animal diligit simile sibi.

Si igitur ratione similitudinis verbo procedenti convenit generari et nasci, videtur etiam quod amori procedenti convenit generari.

Argumentum 3

Praeterea, non est in genere quod non est in aliqua eius specie.

Si igitur in divinis sit quaedam processio amoris, oportet quod, praeter hoc nomen commune, habeat aliquod nomen speciale. Sed non est aliud nomen dare nisi generatio. Ergo videtur quod processio amoris in divinis sit generatio.

Sed Contra

Sed contra est quia secundum hoc sequeretur quod spiritus sanctus, qui procedit ut amor, procederet ut genitus.

Quod est contra illud Athanasii, spiritus sanctus a patre et filio non factus nec creatus nec genitus, sed procedens.

Corpus

Respondeo dicendum quod processio amoris in divinis non debet dici generatio. Ad cuius evidentiam, sciendum est quod haec est differentia inter intellectum et voluntatem, quod intellectus fit in actu per hoc quod res intellecta est in intellectu secundum suam similitudinem, voluntas autem fit in actu, non per hoc quod aliqua similitudo voliti sit in voluntate, sed ex hoc quod voluntas habet quandam inclinationem in rem volitam.

Processio igitur quae attenditur secundum rationem intellectus, est secundum rationem similitudinis, et intantum potest habere rationem generationis, quia omne generans generat sibi simile. Processio autem quae attenditur secundum rationem voluntatis, non consideratur secundum rationem similitudinis, sed magis secundum rationem impellentis et moventis in aliquid. Et ideo quod procedit in divinis per modum amoris, non procedit ut genitum vel ut filius, sed magis procedit ut spiritus, quo nomine quaedam vitalis motio et impulsio designatur, prout aliquis ex amore dicitur moveri vel impelli ad aliquid faciendum.

Ad 1

Ad primum ergo dicendum quod quidquid est in divinis, est unum cum divina natura. Unde ex parte huius unitatis non potest accipi propria ratio huius processionis vel illius, secundum quam una distinguatur ab alia, sed oportet quod propria ratio huius vel illius processionis accipiatur secundum ordinem unius processionis ad aliam. Huiusmodi autem ordo attenditur secundum rationem voluntatis et intellectus. Unde secundum horum propriam rationem sortitur in divinis nomen utraque processio, quod imponitur ad propriam rationem rei significandam. Et inde est quod procedens per modum amoris et divinam naturam accipit, et tamen non dicitur natum.

Ad 2

Ad secundum dicendum quod similitudo aliter pertinet ad verbum, et aliter ad amorem. Nam ad verbum pertinet inquantum ipsum est quaedam similitudo rei intellectae, sicut genitum est similitudo generantis, sed ad amorem pertinet, non quod ipse amor sit similitudo, sed inquantum similitudo est principium amandi. Unde non sequitur quod amor sit genitus, sed quod genitum sit principium amoris.

Ad 3

Ad tertium dicendum quod deum nominare non possumus nisi ex creaturis, ut dictum est supra.

Et quia in creaturis communicatio naturae non est nisi per generationem, processio in divinis non habet proprium vel speciale nomen nisi generationis.

Unde processio quae non est generatio, remansit sine speciali nomine. Sed potest nominari spiratio, quia est processio spiritus.