Theophylact of Ohrid

But we must also know from this that words are confirmed by deeds as then in the Apostles works confirmed their words, for signs followed. Grant then, O Christ, that the good words which we speak may be confirmed by works and deeds, so that at the last, Thou working with us in word and in deed, we may be perfect, for Thine as is fitting is the glory both of word and deed. Amen.

Catena Aurea by Aquinas ↗

Irenaeus

Also, towards the conclusion of his Gospel, Mark says: "So then, after the Lord Jesus had spoken to them, He was received up into heaven, and sitteth on the right hand of God;" confirming what had been spoken by the prophet: "The Lord said to my Lord, Sit Thou on My right hand, until I make Thy foes Thy footstool." Thus God and the Father are truly one and the same; He who was announced by the prophets, and handed down by the true Gospel; whom we Christians worship and love with the whole heart, as the Maker of heaven and earth, and …

Against Heresies Book III ↗

Augustine of Hippo

By which words He seems to show clearly enough that the foregoing discourse was the last that He spake to them upon earth, though it does not appear to bind us down altogether to this opinion. For He does not say, After He had thus spoken unto them, wherefore it admits of being understood not as if that was the last discourse, but that the words which are here used, After the Lord had spoken unto them, he was received into heaven, might belong to all His other discourses. …

Catena Aurea by Aquinas ↗

Gregory the Dialogist

Are we then without faith because we cannot do these signs? Nay, but these things were necessary in the beginning of the Church, for the faith of believers was to be nourished by miracles, that it might increase. Thus we also, when we plant groves, pour water upon them, until we see that they have grown strong in the earth; but when once they have firmly fixed their roots, we leave off irrigating them. These signs and miracles have other things which we ought to consider more minutely. …

Catena Aurea by Aquinas ↗

Bede

And indeed the Lord Jesus, after having spoken to them, was taken up into heaven and sits at the right hand of God. We must consider what it is that Mark says: He sits at the right hand of God, and Stephen says, I see the heavens opened, and the Son of Man standing at the right hand of God (Acts VII). What is it that Mark says he sees sitting, while Stephen testifies he sees standing? But we know that to sit pertains to one who judges, and to stand to one who fights or helps. …

On the Gospel of Mark ↗