"Jesus, we believe, is indeed truly divine and truly human. But those two natures, while inseparably joined in God the Son, the Second Person of the Trinity, are distinct and unconfused. The Incarnate Lord is not a mishmash of divinity and humanity. There is not a scrap of human nature in his Godhead, and most important here, there is not a smitch of deity in his manhood, any more than there is in yours or mine. He came to save us, in our nature, not to put on some flashy, theandric, superhuman performance that would be fundamentally irrelevant to our condition.
Accordingly, when the deity of Jesus acts or impinges upon his humanity, it does so not in the order of nature, not by souping up his humanity into something more than human - but in the order of grace: that is, by divine influences that empower human nature but do not tamper with it. In Scripture, it's precisely the Holy Spirit, the Third Person of the Trinity, who is given credit for enabling and guiding the humanity of Jesus.
(...)
Therefore, when we talk about the development of Jesus' messianic consciousness, we should stay light-years away from any suggestion that he had a kind of trap door between his divine and human minds. (...) The influence of the Spirit alone - acting upon his human nature in no fundamentally different way that it does on ours - is quite sufficient: it covers all the biblical bases; it provides for all the divine "informing" we ever need to speak of; and it does so without turning Jesus into Superman."
CAPON, Robert Farrar. Kingdom, Grace, Judgment: Paradox, Outrage, and Vindication in the Parables of Jesus. Pages 33-34.