v. 16 — Then therefore he delivered Him unto them to be crucified.
Commentary on the Gospel according to John · St Cyril of Alexandria
Pilate henceforward permits the Jews, in their unbridled resentment, to run to all lengths in lawlessness; and, divesting himself of the power due unto a judge, suffers their uncontrolled passions at length to take their course unreproved, in allowing them to crucify One Who was wholly guiltless, and Who received this monstrous condemnation merely because He said He was the Son of God. One must lay the whole guilt of the impious crime at the door of the Jews; and rightly and justly, I think, accuse them of being the prime movers in the act, for with them originated this impiety against Christ. Yet we cannot acquit Pilate of complicity in their iniquity; for he shared their responsibility, inasmuch as when he might have delivered and rescued Him from the madness of His murderers, he did not merely refrain from releasing Him, but even gave Him up to them for the very purpose, that they might crucify Him.
CyrJn 12.16.1