Albert Barnes Commentary Matthew 26:64

"Jesus said unto him, Thou hast said: nevertheless I say unto you, Henceforth ye shall see the Son of man sitting at the right hand of Power, and coming on the clouds of heaven." — Matthew 26:64 (ASV)

You have said. This is a form of assenting or affirming. You have said the truth; or, as Luke 22:70 has it, Ye say that I am. This was not, however, said immediately. Before Jesus acknowledged himself to be the Messiah, he said to them, Luke 22:67–69, If I tell you, ye will not believe: and if I also ask you—that is, propose the proofs of my mission, and require you to give your opinion of them—ye will not answer me, nor let me go.

Nevertheless. This word should have been translated moreover, or furthermore. What follows is designed to explain and give confirmation to what he had said.

Sitting on the right hand of power. That is, of God, called here the Power; equivalent to the Mighty, or the Almighty. It denotes dignity and majesty, for to sit at the right hand of a prince was the chief place of honour. See Barnes on Matthew 20:21.

Coming in the clouds of heaven. See Barnes on Matthew 24 and Matthew 25. The meaning of this is, you will see the sign from heaven which you have so often demanded; even the Messiah returning himself as the sign, with great glory, to destroy your city, and to judge the world.

Hand of power: Psalms 110:1; Acts 7:55.