Even while among them, He held knowledge that they were unprepared to receive. In this context, He was aware of what they needed to learn from Him. Among the mature, He understood what remained unknown to the immature (cf. 1 Cor. 3:1).
I do not believe that a metaphorical expression should be labeled as falsehood. Describing a day as joyful when it brings happiness is not deceitful, just as calling a lupine sad because its bitter taste sours the mood of the eater is not misleading. In the same manner, we say that God knows something when He chooses to disclose that understanding to humanity. You likely recall how it was expressed to Abraham (Gen. 22:12). Such statements hold truth, as you can readily observe. Therefore, when the blessed Hilary (Gen. 22:12) drew attention to the figurative language of Christ, he aimed for us to recognize that He described Himself as not knowing (cf. Matt. 24:36) in a way that reflected the ignorance of His listeners. This clarification does not justify deceit; instead, it emphasizes that such expressions do not embody falsehood, nor do metaphors, which all communicators recognize. Would anyone claim it is deceitful to say that grapes ‘sparkle’ or that fields ‘wave’ or young men ‘blossom’ when these objects and persons do not literally possess jewels, waves, herbs, or trees?
He thus emphasized that no one should presumptively calculate the timing of that day by counting the years. For instance, if that day were to arrive in seven thousand years, individuals could easily determine His coming by simply tallying the years. What significance does it hold that the Son is said to be unaware of this day? It indicates that knowledge of it would not come through the Son, rather than suggesting He lacks awareness of it (Deut. 13:3). This implies that He enables your understanding. Similarly, "Arise, O Lord" (Psalms 3:8) means to make us rise. Therefore, when it is declared that the Son does not know that day, it does not imply He is truly ignorant; rather, it suggests He does not intend to disclose it to those whom He does not wish to inform.
Our Lord Jesus Christ, our Teacher, was sent to us, and the Son of Man indicated that He was unaware of that day because it was not to be disclosed through Him. There is nothing that the Father comprehends that the Son does not, for the knowledge of the Father is encapsulated in His wisdom, and His wisdom is the Son, the Word. It is not necessary for us to learn everything that He, who came to educate us, knows. He did not come to impart information that would not be beneficial for us. As a Teacher, He selected what to communicate while withholding other knowledge. When it is said that the Son does not know, it refers to those matters He chooses not to teach us. In this way, the expression that the Son does not know aligns with our everyday language, as I have previously pointed out.