Ammonius of Alexandria : "What if a spirit or an angel has spoken to him?" These words are obscure or something is missing for the completion of the sentence, which would be, "If a spirit or an angel has told to him what to say in order to avoid dangers, he is being deceptive." Otherwise, what the Pharisees say must be understood in the sense, "Look! He's clearly talking about the resurrection, since he's been taught either this teaching on the resurrection by the Holy Spirit or an angel." — CATENA ON THE ACTS OF THE APOSTLES 23.9 John Chrysostom : "And there arose a great cry: and the scribes that were of the Pharisees' part arose, and strove, saying, We find no evil in this man: but if a spirit has spoken to him, or an angel?" Why did they not plead for him before this? Do you observe, how, when the passions give way, the truth is discovered? Where is the crime, say they, if an angel has spoken to him, or a spirit? Paul gives them no handle against him. — Homily on Acts 49 John Chrysostom : "And the scribes," etc. Look; the tribune also hears that the Pharisees have acquitted him of the charges, and have given sentence in his favor, and with greater confidence carries him off by force. — Homily on Acts 49 Oecumenius : "If a spirit spoke to him." The statement can be understood in two ways. For something is lacking to complete the sense so that it may be read therefore: If a spirit or an angel spoke to him, it is unclear, he says; or as the phrase must be taken from the Pharisees: If a spirit spoke to him or an angel, instead of "Behold, I speak about the resurrection," it is evident that the word about the resurrection was taught either by the Holy Spirit or by an angel. [AMMONIUS] — Commentary on Acts