At what time in his life did Jesus come to know that (1) he was God and (2) that he would be crucified, die and be buried and on the third day would rise from the dead? When he was born? As a boy? As a young man?
Jesus did not “come to know” that he was the Son of God. Although it is true that his human knowledge increased, he knew by human knowledge that he was God as soon as his brain was physiologically mature enough to process the knowledge.
It’s a teaching of the Church that "Christ’s soul possessed the immediate vision of God from the first moment of its existence.” (*Fundamentals of Catholic Dogma *by Dr. Ludwig Ott, pg. 162).
“The Church teaches His human soul saw the vision of divinity from conception, in which He knew all He would suffer. Lk 2:52 saying He grew in wisdom refers to the manifestation, not to an actual growth. Mk 13:32 tells us the source of His knowledge of the day was not His humanity, even though the day did register in His humanity.”
474 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.108 What he admitted to not knowing in this area, he elsewhere declared himself not sent to reveal (Catechism of the Catholic Church).
482 Christ, being true God and true man, has a human intellect and will, perfectly attuned and subject to his divine intellect and divine will, which he has in common with the Father and the Holy Spirit (Catechism of the Catholic Church).
Consciousness of Christ Fr. William Most
An Ignorant Jesus? Fr. William Most
*Catechism of the Catholic Church *sections 456-483 (The Son of God Became Man)