Cyril of Alexandria

Whenever sitting and a throne are spoken of God, His kingly and supreme majesty is signified. For we do not imagine any judgment-seat to be placed, on which we believe the Lord of all takes His seat; nor again, that in any wise right hand or left hand appertain to the Divine nature; for figure, and place, and sitting, are the properties of bodies. But how shall the Son be seen to be of equal honour and to sit together on the same throne, if He is not the Son according to nature, having in Himself the natural property of the Father?

Catena Aurea by Aquinas ↗

Theophylact of Ohrid

You will see Me, the Son of Man, sitting "at the right hand of the power of God."

Commentary on Luke ↗

Bede

From this, the Son of Man will be sitting at the right hand of the power of God. Therefore, if in Christ, O Jew, pagan, and heretic, contempt, weakness, and the cross are an insult, see that through these the Son of Man will sit at the right hand of God the Father, and being born as a human from the virgin's birth, he will come in his majesty with the clouds of heaven. …

On the Gospel of Luke ↗

Bonaventure

Lest, however, he should seem to seek evasion, he answers with the truth, when he adds: But from henceforth the Son of man shall be sitting at the right hand of the power of God: from henceforth, that is, after this passion, according to that passage in Philippians 2: "He humbled himself: wherefore God also exalted him," etc. …

Commentary on Luke, Chapter 22 ↗