Matthew 26:63-64
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KJV
63 But Jesus held his peace, And the high priest answered and said unto him, I adjure thee by the living God, that thou tell us whether thou be the Christ, the Son of God.
64 Jesus saith unto him, Thou hast said: nevertheless I say unto you, Hereafter shall ye see the Son of man sitting on the right hand of power, and coming in the clouds of heaven.
63 But Jesus was silent. And the high priest said to him, "I adjure you by the living God, tell us if you are the Christ, the Son of God." 64 Jesus said to him, "You have said so. But I tell you, hereafter you will see the Son of man seated at the right hand of Power, and coming on the clouds of heaven."
Re the Son of Man coming in/on "the clouds of heaven" see The Cloud Rider.