John Chrysostom

"Who was purposely designed," says he: in Whom there is nothing novel. Here he also alarms them, by the thought that much remains to be fulfilled. But if so, how says he, "Hath fulfilled?" The things which it was necessary "that Christ should suffer," are fulfilled: the things which must come to pass, not yet.

Homily on Acts 9 ↗

Theophylact of Ohrid

But how does Peter say: "Whom heaven had to receive?" Has it not yet received Jesus? It has received Him, without any doubt. But why then did he not say: "received"? He speaks thus as a man conversing about former times. So then, the meaning of this text is that much of what the prophets foretold has not yet been fulfilled, but is being fulfilled and will continue to be fulfilled until the end of the world, because Christ, who ascended into the heavens, will remain there until the end of the world and will come with power when, at …

Commentary on Acts ↗

Oecumenius

"Whom," Peter says, "heaven must receive," although indeed he had already been received at the time of the ascension. But in this passage the language is used more personally, according to his own letter, in which he says concerning Christ: "For he received honor and glory from God the Father, and the voice was brought to him from heaven." (2 Peter 1:17) For even the phrase Λαβὼν instead of "ἔλαβεν" the construction of the sentence requires it, so that the meaning may be properly structured. …

Commentary on Acts ↗

Bede

Whom heaven must indeed receive until the times of the restitution of all things, which God spoke by the mouth of His holy prophets since the world began. This is what the Psalmist testifies as said to the same Lord Jesus Christ by God the Father: Sit at my right hand until I make your enemies a footstool for your feet (Psalm 109). For He was taken up into heaven and sits at the right hand of God. …

Retractions on Acts ↗