A.T. Robertson Commentary Luke 22:69

"But from henceforth shall the Son of man be seated at the right hand of the power of God." — Luke 22:69 (ASV)

The Son of man (ο υιος του ανθρωπου). Jesus really answers their demand about "the Messiah" by asserting that he is "the Son of man" and they so understand him. He makes claims of equality with God also which they take up.