Question:
Answer:
The Catechism of the Catholic Church explains the orthodox interpretation of these words of the Lord:
By its union to the divine wisdom in the person of the Word incarnate, Christ enjoyed in his human knowledge the fullness of understanding of the eternal plans he had come to reveal. What he admitted to not knowing in this area, he elsewhere declared himself not sent to reveal (474).
What this means then is that “not knowing” refers to his not being sent to reveal the day and the hour in his human nature, leaving that office to the Father. It has always been understood that as God, Christ knows the day and the hour but that in his mission on Earth he was not sent to reveal this. We need to remember that the word to know in the Semitic senses used in Scripture is very diverse and rich and does not refer only to mental information but to actions and offices.