John Chrysostom

That it was Jesus himself [at the ascension] they knew from the fact that he had been conversing with them (for had they seen only from a distance, they could not have recognized him by sight), but that he is taken up into heaven the angels themselves inform them. Observe how it is ordered, that not all is done by the Spirit, but the eyes also do their part. But why did "a cloud receive him"? This too was a sure sign that he went up to heaven. …

Homily 2 on the Acts of the Apostles ↗

Augustine of Hippo

It is relevant to recall that holy Isaiah uttered a particular prophecy concerning Egypt: "And the idols of Egypt shall be moved at his presence, and the heart of Egypt shall melt within them" and the rest.In the same class with these prophets were those who rejoiced because they knew he had come whom they had been expecting. …

City of God 8.23 ↗

Ambrose of Milan

Hear, for the flesh of the Lord was a shadow: Behold, the Lord sits upon a light cloud, and will come to Egypt. And David says: Protect me under the shadow of your wings. Therefore, he became a shadow emptied for us, whom the sun of iniquity had burned. We saw him in the shadow when faith first advanced. But now he illuminates the whole world: and yet we still see him through the shadow of his body, which is the Church, not yet face to face; for the eyes of the body are unable to receive the brightness of divinity. …

Exposition on Psalm 118, 19.6 ↗

Jerome

The Burden of Egypt. Behold, the Lord will ascend upon a light cloud, and will enter into Egypt, and the idols of Egypt shall be moved at his presence, and the heart of Egypt shall melt in the midst thereof. It is the custom of the Scriptures to connect the clear with the obscure, and to openly declare with a clear voice what was previously expressed in enigmas. …

Commentary on Isaiah ↗