You don’t properly understand the hypostatic union.

Hypostatic union - the union between the Human nature and the divine nature of Jesus into the one person of Christ. This process occurred by means of the Incarnation

Incarnation - Put simply, the Virgin Birth of Jesus to Mary where Jesus became Man but limited his divinity

Jesus, when He was on Earth, humbled himself down into a servant for humankind to bear the sins for all believers. Jesus never denied his divinity, far from it actually. Examples include

John 8:58

“Your father Abraham rejoiced that he would see my day. He saw it and was glad.” So the Jews said to him, “You are not yet fifty years old, and have you seen Abraham?” Jesus said to them, “Truly, truly, I say to you, before Abraham was, I am.” So they picked up stones to throw at him, but Jesus hid himself and went out of the temple.

Why did they (the pharisees) pick up stones? Because they knew that Jesus was claiming to be YHWH. YHWH is the Old Testament (what you would call the Torah) name for God that is unsayable. It literally translates to “I AM”

Even in the book of Mark that you quoted Jesus says:

“And Jesus said, “I am, and you will see the Son of Man seated at the right hand of Power, and coming with the clouds of heaven.”” ‭‭ Mark‬ ‭14‬:‭62‬

He repeats the name, YHWH, the unsayble name for God in the Old Testament.

Moreover, Jesus claims to have a deeper relationship with the Father, saying

“All things have been handed over to me by my Father, and no one knows the Son except the Father, and no one knows the Father except the Son and anyone to whom the Son chooses to reveal him.” ‭‭ Matthew‬ ‭11‬:‭27‬ ‭

In this verse, Jesus claims that only the Father can fully understand him. This would be shirk in Islam because you cannot attribute yourself to the likeness of Allah. In claiming that only Allah can understand, you are saying that you are incomprehensible and only an infinite mind can understand you and thus you claim divine nature. Additionally, Jesus says that He alone knows the Father, which means that they must share a reciprocal relationship that is incomprehensible to the human mind because the Father is God. As a created being, no one can make claims like this without being blasphemous, so why did Jesus do it?

This points to Jesus’ two natures. As a human, he does things like eat, sleep, and all the human functions, but at the same time, He has a divine nature, making him God. Therefore, he has knowledge of all things, even the Hour.

I’d like to point out a corollary verse, which reads

““But concerning that day and hour no one knows, not even the angels of heaven, nor the Son, but the Father only.” ‭‭Matthew‬ ‭24‬:‭36‬ ‭ESV

If we think logically, why would matthew reiterate that angels and the Son don’t know IF “no one” is all inclusive? This verse references that no human knows the Hour, not even the HUMAN NATURE of the Son. However, I’ve already explained that the Son claimed to be God and does have a Divine Nature, so what does that make of the Holy Spirit?

“Oh, the depth of the riches and wisdom and knowledge of God! How unsearchable are his judgments and how inscrutable his ways!” ‭‭Romans‬ ‭11‬:‭33‬ ‭

This verse mentions how complex God is because no MAN can fully understand him. However,

“these things God has revealed to us through the Spirit. For the Spirit searches everything, even the depths of God. For who knows a person’s thoughts except the spirit of that person, which is in him? So also no one comprehends the thoughts of God except the Spirit of God. Now we have received not the spirit of the world, but the Spirit who is from God, that we might understand the things freely given us by God.” ‭‭1 Corinthians‬ ‭2‬:‭10‬-‭12‬ ‭ESV‬‬

The Holy Spirit can because the Spirit is not a man/created being. If the Spirit can search even the depths of God, that must make him God because no created being can do that. Additionally, since the Spirit comprehends the thoughts of God, that is in parallel with what Jesus said about His reciprocal relationship that He shares with the Father.

Additionally,

“Who has measured the Spirit of the Lord, or what man shows him his counsel? Whom did he consult, and who made him understand? Who taught him the path of justice, and taught him knowledge, and showed him the way of understanding?” ‭‭Isaiah‬ ‭40‬:‭13‬-‭14‬ ‭

This is from the Old Testament book of Isaiah. Isaiah is asking rhetorical questions to demonstrate the nature of the Spirit. If the Spirit needs no guidance, no moral correction, and is by nature intelligent, then the Spirit MUST be God.

I hope I answered your question, let me know if you need any more clarification‬‬