t 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.