Thomas Aquinas - Summa Theologica, Part III (Tertia Pars)

Reply Obj. 1: Both the infused knowledge and the beatific knowledge of Christ's soul were the effects of an agent of infinite power, which could produce the whole at once; and thus in neither knowledge did Christ advance; since from the beginning He had them perfectly. But the acquired knowledge of Christ is caused by the active intellect which does not produce the whole at once, but successively; and hence by this knowledge Christ did not know everything from the beginning, but step by step, and after a time, i.e. in His perfect age; and this is plain from what the Evangelist says, viz. that He increased in "knowledge and age" together.

Reply Obj. 2: Even this knowledge was always perfect for the time being, although it was not always perfect, simply and in comparison to the nature; hence it could increase.

Reply Obj. 3: This saying of Damascene regards those who say absolutely that addition was made to Christ's knowledge, i.e. as regards any knowledge of His, and especially as regards the infused knowledge which is caused in Christ's soul by union with the Word; but it does not regard the increase of knowledge caused by the natural agent. _______________________

THIRD ARTICLE [III, Q. 12, Art. 3]

Whether Christ Learned Anything from Man?

Objection 1: It would seem that Christ learned something from man. For it is written (Luke 2:46, 47) that, "They found Him in the temple in the midst of the doctors, hearing them, and asking them questions." But to ask questions and to reply pertains to a learner. Therefore Christ learned something from man.

Obj. 2: Further, to acquire knowledge from a man's teaching seems more noble than to acquire it from sensible things, since in the soul of the man who teaches the intelligible species are in act; but in sensible things the intelligible species are only in potentiality. Now Christ received empiric knowledge from sensible things, as stated above (A. 2). Much more, therefore, could He receive knowledge by learning from men.

Obj. 3: Further, by empiric knowledge Christ did not know everything from the beginning, but advanced in it, as was said above (A. 2). But anyone hearing words which mean something, may learn something he does not know. Therefore Christ could learn from men something He did not know by this knowledge.

On the contrary, It is written (Ps. 45:4): "Behold, I have given Him for a witness to the people, for a leader and a master to the Gentiles." Now a master is not taught, but teaches. Therefore Christ did not receive any knowledge by the teaching of any man.

I answer that, In every genus that which is the first mover is not moved according to the same species of movement; just as the first alterative is not itself altered. Now Christ is established by God the Head of the Church—yea, of all men, as was said above (Q. 8, A. 3), so that not only all might receive grace through Him, but that all might receive the doctrine of Truth from Him. Hence He Himself says (John 18:37): "For this was I born, and for this came I into the world; that I should give testimony to the truth." And thus it did not befit His dignity that He should be taught by any man.

Reply Obj. 1: As Origen says (Hom. xix in Luc.): "Our Lord asked questions not in order to learn anything, but in order to teach by questioning. For from the same well of knowledge came the question and the wise reply." Hence the Gospel goes on to say that "all that heard Him were astonished at His wisdom and His answers."

Reply Obj. 2: Whoever learns from man does not receive knowledge immediately from the intelligible species which are in his mind, but through sensible words, which are signs of intelligible concepts. Now as words formed by a man are signs of his intellectual knowledge; so are creatures, formed by God, signs of His wisdom. Hence it is written (Ecclus. 1:10) that God "poured" wisdom "out upon all His works." Hence, just as it is better to be taught by God than by man, so it is better to receive our knowledge from sensible creatures and not by man's teaching.

Reply Obj. 3: Jesus advanced in empiric knowledge, as in age, as stated above (A. 2). Now as a fitting age is required for a man to acquire knowledge by discovery, so also that he may acquire it by being taught. But our Lord did nothing unbecoming to His age; and hence He did not give ear to hearing the lessons of doctrine until such time as He was able to have reached that grade of knowledge by way of experience. Hence Gregory says (Sup. Ezech. Lib. i, Hom. ii): "In the twelfth year of His age He deigned to question men on earth, since in the course of reason, the word of doctrine is not vouchsafed before the age of perfection." _______________________

FOURTH ARTICLE [III, Q. 12, Art. 4]

Whether Christ Received Knowledge from the Angels?

Objection 1: It would seem that Christ received knowledge from the angels. For it is written (Luke 22:43) that "there appeared to Him an angel from heaven, strengthening Him." But we are strengthened by the comforting words of a teacher, according to Job 4:3, 4: "Behold thou hast taught many and hast strengthened the weary hand. Thy words have confirmed them that were staggering." Therefore Christ was taught by angels.

Obj. 2: Further, Dionysius says (Coel. Hier. iv): "For I see that even Jesus—the super-substantial substance of supercelestial substances—when without change He took our substance upon Himself, was subject in obedience to the instructions of the Father and God by the angels." Hence it seems that even Christ wished to be subject to the ordinations of the Divine law, whereby men are taught by means of angels.

Obj. 3: Further, as in the natural order the human body is subject to the celestial bodies, so likewise is the human mind to angelic minds. Now Christ's body was subject to the impressions of the heavenly bodies, for He felt the heat in summer and the cold in winter, and other human passions. Therefore His human mind was subject to the illuminations of supercelestial spirits.

On the contrary, Dionysius says (Coel. Hier. vii) that "the highest angels question Jesus, and learn the knowledge of His Divine work, and of the flesh assumed for us; and Jesus teaches them directly." Now to teach and to be taught do not belong to the same. Therefore Christ did not receive knowledge from the angels.

I answer that, Since the human soul is midway between spiritual substances and corporeal things, it is perfected naturally in two ways. First by knowledge received from sensible things; secondly, by knowledge imprinted or infused by the illumination of spiritual substances. Now in both these ways the soul of Christ was perfected; first by empirical knowledge of sensible things, for which there is no need of angelic light, since the light of the active intellect suffices; secondly, by the higher impression of infused knowledge, which He received directly from God. For as His soul was united to the Word above the common mode, in unity of person, so above the common manner of men was it filled with knowledge and grace by the Word of God Himself; and not by the medium of angels, who in their beginning received the knowledge of things by the influence of the Word, as Augustine says (Gen. ad lit. ii, 8).

Reply Obj. 1: This strengthening by the angel was for the purpose not of instructing Him, but of proving the truth of His human nature. Hence Bede says (on Luke 22:43): "In testimony of both natures are the angels said to have ministered to Him and to have strengthened Him. For the Creator did not need help from His creature; but having become man, even as it was for our sake that He was sad, so was it for our sake that He was strengthened," i.e. in order that our faith in the Incarnation might be strengthened.

Reply Obj. 2: Dionysius says that Christ was subject to the angelic instructions, not by reason of Himself, but by reason of what happened at His Incarnation, and as regards the care of Him whilst He was a child. Hence in the same place he adds that "Jesus' withdrawal to Egypt decreed by the Father is announced to Joseph by angels, and again His return to Judaea from Egypt."