1 On the Jews crying out that they did not wish Jesus to be released unto them at the passover, but Barabbas the robber; not the Saviour, but the murderer; not the Giver of life, but the destroyer—“then Pilate took Jesus and scourged Him.” We must believe that Pilate acted thus for no other reason than that the Jews, glutted with the injuries done to Him, might consider themselves satisfied, and desist from madly pursuing Him even unto death. With a similar intention was it that, as governor, he also permitted his cohort to do what follows, or even perhaps ordered them, although the evangelist is silent on the subject.
For he tells us what the soldiers did thereafter, but not that Pilate ordered it. “And the soldiers,” he says, “platted a crown of thorns, and put it on His head, and they clothed Him with a purple robe. And they came to Him and said, Hail, King of the Jews! And they smote Him with their hands.” Thus were fulfilled the very things which Christ had foretold of Himself; thus were the martyrs moulded for the endurance of all that their persecutors should be pleased to inflict; thus, by concealing for a time the terror of His power, He commended to us the prior imitation of His patience; thus the kingdom which was not of this world overcame that proud world, not by the ferocity of fighting, but by the humility of suffering; and thus the grain of grain that was yet to be multiplied was sown amid the horrors of shame, that it might come to fruition amid the wonders of glory.
Source: Tractates on the Gospel of John (New Advent)