(Mark 14:52-62)55 The chief priests and the whole Sanhedrin were looking for evidence against Jesus so that they could put him to death, but they did not find any. 56 Many testified falsely against him, but their statements did not agree.
57 Then some stood up and gave this false testimony against him: 58 “We heard him say, ‘I will destroy this temple made with human hands and in three days will build another, not made with hands.’” 59 Yet even then their testimony did not agree.
60 Then the high priest stood up before them and asked Jesus, “Are you not going to answer? What is this testimony that these men are bringing against you?” 61 But Jesus remained silent and gave no answer.
Again the high priest asked him, “Are you the Messiah, the Son of the Blessed One?”
62 “I am,” said Jesus. “And you will see the Son of Man sitting at the right hand of the Mighty One and coming on the clouds of heaven.”
This is the only point where Jesus seems to break the Messianic Secret about his identity. But is really so?
''Son of Man'' doesn't appear in Paul. An hypothetical marcionite (dualistic) reading of Mark may explain why even in this episode there is still the Messianic Secret at work.
Jesus is saying that yes, he is the Christ, the Son of God, but he means the Son of an Alien God, not the same god of the Jews.
Therefore when Jesus says:
...he is meaning: and you, who don't believe in the good news of the Son of a Stranger God and don't recognized him as such, will are condemned to see the vindictive Christ of the Creator God, i.e. the Son of Man.“And you will see the Son of Man sitting at the right hand of the Mighty One and coming on the clouds of heaven.”
Therefore it is not Jesus that who is threathening a condemnation of scribes and pharisees, but simply the Creator God, who will send his Messiah to fulfill, in a future day, his scriptures & predictions.