Let me add a little more from St Cyril...
Certainly the Evangelist, seeing the tearless Nature weeping, is astonished, although the suffering was peculiar to the flesh, and not suitable to the Godhead. And the Lord weeps, seeing the man made in His own image marred by corruption, that He may put an end to our tears. For for this cause He also died, even that we may be delivered from death. And He weeps a little, and straightway checks His tears; lest He might seem to be at all cruel and inhuman, and at the same time instructing us not to give way overmuch in grief for the dead. For it is one thing to be influenced by sympathy, and another to be effeminate and unmanly. For this cause therefore He permitted His own flesh to weep a little, although it was in its nature tearless and incapable of any grief, so far as regards its own nature.
Be not therefore offended, considering perchance within thyself, How can God increase? or how can He Who gives grace to angels and to men receive fresh wisdom? Rather reflect upon the great skill wherewith we are initiated into His mystery. For the wise Evangelist did not introduce the Word in His abstract and incorporeal nature, and so say of Him that He increased in stature and wisdom and grace, but after having shewn that He was born in the flesh of a woman, and took our likeness, he then assigns to Him these human attributes, and calls Him a child, and says that He waxed in stature, as His body grow little by little, in obedience to corporeal laws. And so He is said also to have increased in wisdom, not as receiving fresh supplies of wisdom,----for God is perceived by the understanding to be entirely perfect in all things, and altogether incapable of being destitute of any attribute suitable to the Godhead:----but because God the Word gradually manifested His wisdom proportionably to the age which the body had attained.
The body then advances in stature, and the soul in wisdom: for the divine nature is capable of increase in neither one nor the other; seeing that the Word of God is all perfect. And with good reason he connected the increase of wisdom with the growth of the bodily stature, because the divine nature revealed its own wisdom in proportion to the measure of the bodily growth.
This latter shows where we might all be in agreement. St Cyril shows that Christ has in Himself ALL the Wisdom of God, and does not grow in this Wisdom, rather He chooses to manifest it appropriately. It is not something that is being learned or gained or added to, but it is being manifested more and more clearly.
He also speaks of the teaching by Christ in the temple as a youth..
Here then first He makes more open mention of Him Who is truly His Father, and lays bare His own divinity: for when the holy Virgin said, Child, why hast Thou so done unto us? then at once shewing Himself to transcend the measure of human things, and teaching her that she had been made the handmaid of the dispensation in giving birth to the flesh, but that He by nature and in truth was God, and the Son of the Father That is in heaven, He says, Did ye not know that I must be at My Father's?
This also illustrates that there is a manifestation of His divine wisdom and not an increase in it. Here he is as a twelve year old revealing that he knows he is God. St Cyril again speaks of God the Word being able to 'transcend the measure of human things'.
But IT IS A MANIFESTATION OF THE DIVINE WISDOM and not acquired human knowledge.