Pope Shenouda III
What can be understood from Christ's sitting at the right hand of the Father?
The Father has no right and has no left because He is Infinite and He fills all things. There is no vacuum at His right side for another to sit there. So what is the meaning of sitting at His right side? The word 'right' is a symbol of power and of righteousness and of majesty. This symbolism is similar to the Lord's expressions 'your right eye' and 'your right hand' in (Matt. 5:29,30), The right hand of the Father means the power of the Father, the righteousness of the Father and the majesty of the Father. That is why it was once said that the Son sat at the right hand of the Power and at another that He sat at the right hand of the Majesty. The word 'sat' here means remained.
This means that the Son who, in emptying Himself, appeared weak in front of you; was slapped on the face, scourged and crucified, by His ascension entered into His power and you will not see Him any more in weakness. And at His Second Coming, He will come on the clouds in His glory, surrounded by all the holy angels (Matt. 25:31), because at His Second Coming He will come with power and great glory (Matt. 24:30).
Also, the Son who stood in front of you as a sinner and criminal, and who stood before the Father carrying all the sins of the world, will sit at the right hand of His Father, that is, in His righteousness, and nobody can dare condemn Him any more.
The expression "sitting at the right hand of the Power" means that the stage of emptying Himself has ended and that the Son entered into His glory. That is why it is said that at His Second Coming, He will come,, in His own glory, and His Father's (Lk. 9:26), and it is also said: "For the Son of Man will come in the glory of His Father with His angels" (Matt. 16:27). This glory is the sitting at the right hand of the Father