Well, in Christ we have what we term hypostatic union of the human and divine nature. However, it is not randomly that the Lord referred to Himself with the most humble of all messianic titles,
son of man.
This issue of Christ as somehow “lower” or “less” than God is one of the earliest errors encountered by the Christian community. Several doctrines have lead many astray, emphasizing some out-of-context parts of the Scriptures. Sound Sacred Tradition has always shown without any possible doubt that (a) Christ is God, (b) God is One in Three Persons, (c) in Christ, we have a perfect hypostatic union of humanity and divinity.
Remember how at one point the Lord says: “why do you call me good? Only God is good.” That is not a denial of his divinity, but a careful warning to men. At the same time, when St. Thomas sees Him after the Resurrection, in His glory, and calls Him “my God”, Jesus does not rebuke Him - rather, He blesses those who, without seeing His glory, shall believe in Him.
Just reading the Old Testament makes it anyways quite obvious that Jesus was indeed God. How many times we read that God would do something and then we see the Lord Jesus doing those things - ex. the signs described to the disciples of the Forerunner, the walking on water and calming the storm, the crucifixion…all of those things were supposed to be done by God Himself. Remember the prophet Isaiah?
It was not a messenger or an angel, but he himself who saved them. Because of his love and pity he redeemed them himself, Lifting them and carrying them all.
you have burdened me with your sins and wearied me with your offenses. I, I am he who blots out your transgressions for my own sake, and I will not remember your sins.
Remember the prophet Zechariah?
This is the word of the Lord concerning Israel. The Lord, who stretches out the heavens, who lays the foundation of the earth, and who forms the spirit of man within him, declares: …]
I will pour out upon the house of David, and upon the inhabitants of Jerusalem, the spirit of grace, and of prayers: and they shall look upon me, whom they have pierced: and they shall mourn for him as one mourneth for an only son, and they shall grieve over him, as the manner is to grieve for the death of the firstborn.
On that day a fountain will be opened to the house of David and the inhabitants of Jerusalem, to cleanse them from sin and impurity. …]
And they shall say to him: What are these wounds in the midst of thy hands? And he shall say: With these I was wounded in the house of them that loved me.
Is it not God Himself who says: “they shall look upon me, whom they have pierced”? Is it not Christ who was pierced, and of whom the Revelation speaks:
Look, he is coming with the clouds, and every eye will see him, even those who pierced him.
Surely He is, for Christ Himself said:
They will see the Son of Man coming on the clouds of the sky, with power and great glory.
The very actions of Christ sufficed for the teachers of the Law - who wouldn’t recognize Him as the messiah - to understand what He was actually doing:
because He not only was breaking the Sabbath, but also was calling God His own Father, making Himself equal with God.
And even if all of the above was unknown and hidden, does it not suffice to read the beginning of the Holy Gospel according to Saint John the Evangelist?
In the beginning was the Word, and the Word was with God, and the Word was God.
He was with God in the beginning. Through him all things were made; without him nothing was made that has been made. …]
He was in the world, and though the world was made through him, the world did not recognize him. …]
The Word became flesh and dwelt among us.
The divine revelation is not openly understandable - Christ explicitly told the Apostles that to them the secrets of the kingdom were revealed. This is why Holy Church has a solid Sacred Tradition that goes over all of these controversies and shows where the true is and where the error lies. To seek anywhere else or to rely on oneself is to inevitably fall into the tricks of he who masters the Sacred Scripture better than any other creature, for the perdition of souls.
However, don’t be dismayed: the Holy Trinity is a great mystery - I’d say the greates of all mysteries - which the human mind simply cannot comprehend. We can only have a very slight grasp of God’s identity. I find it wonderfully expressed in the old
Praefatio de Sanctissima Trinitate:
…]
O Holy Lord, Father Almighty, Everlasting God,
Who, with Your Only-begotten Son and the Holy Spirit
Are one God, one Lord;
Not in the unity of a single person,
but in the trinity of a single nature.
For that which we believe on Your revelation concerning Your glory,
That same we believe of Your Son,
that same of the Holy Spirit,
without difference or discrimination.
So that in confessing the true and everlasting Godhead,
We shall adore distinction in persons,
oneness in being,
and equality in Majesty.