Son of Man and the Ancient of Days

Then the high priest said to Him (Jesus) "Swear by the living God, and tell us, are You the promised Savior (Messiah), the Son of God?"

"I am" Jesus answered him. "But I tell you, from now on you will all see the Son of Man sitting at the right hand of power and coming on the clouds of heaven" Then the high priest tore his clothes and said, "He has spoken blasphemy! Why do we need any more witnesses?

Mathew 26:63-64, also see Mark 14:62

While on earth, Jesus Christ used the title “Son of Man” very frequently to refer to Himself. The Hebrew phrase for Son of Man - ben adam - literally means son of Adam and is frequently used in Ezekiel. However, the Aramaic Son of Man phrase, bar enasha, takes a different meaning; it literally means son of a human being (not son of a male in particular), and is found in Daniel 7:13-14:

In my (Daniel) vision at night I looked, and there before me was One like a Son of Man, coming with the clouds of heaven. He approached the Ancient of Days (God the Father) and was led into His presence.
He (Son of Man) was given authority, glory and sovereign power; all peoples, nations and men of every language served or worshiped him. His dominion is an everlasting dominion that will not pass away, and his kingdom is one that will never be destroyed.

Jesus Christ’s use of this phrase throughout His ministry, as well as during His trial, comes from Daniel’s prophesy above. The Son of Man figure in Daniel is both Divine and human, and has the power to enact final judgment on earth. The Son of Man can also be worshipped without breaking the first commandment.
Caiaphas, the High Priest, should have certainly known that there are two Divine Beings mentioned in Daniel 7:13-14 whom are worthy of worship: Son of Man and the Ancient of Days. This was evidenced by his behavior during Jesus’ trial. When Jesus answered He is the promised Jewish Messiah, Caiaphas seemed to have no disagreement, for most early Jews believed that the Messiah would be a human being appointed by God as the rightful Davidic king. But the minute Jesus quoted Daniel 7:13-14 to proclaim Himself the Son of Man prophesized in Daniel, Caiaphas became furious and tore his clothes.
During His ministry, Jesus also used the Son of Man phrase to claim that He is God incarnate.

But I want you to know that the Son of Man has authority on earth to forgive sins. – Mark 2:10 (only God can forgive sins)
So the Son of Man is Lord even of the Sabbath. – Mark 2:28 (claims He is one of the Creators – the other Two are God the Father and God the Holy Spirit)