13 But the High-priest having questioned Him, and heard the truth, is angry; and the wicked officer of wicked men smites Him; and the countenance, which had shone as the sun, endured to be smitten by lawless hands. Others also come and spit on the face of Him, who by spittle had healed the man who was blind from his birth. Do ye thus requite the Lord? This people is foolish and unwise. And the Prophet greatly wondering, says, Lord, who has believed our report?
For the thing is incredible, that God, the Son of God, and the Arm of the Lord, should suffer such things. But that they who are being saved may not disbelieve, the Holy Ghost writes before, in the person of Christ, who says, (for He who then spoke these things, was afterward Himself an actor in them,) I gave My back to the scourges; (for Pilate, when he had scourged Him, delivered Him to be crucified;) and My cheeks to smitings; and My face I turned not away from the shame of spittings; saying, as it were, “Though knowing before that they will smite Me, I did not even turn My cheek aside; for how should I have nerved My disciples against death for truth's sake, had I Myself dreaded this?”
I said. He that loves his life shall lose it: if I had loved My life, how was I to teach without practising what I taught? First then, being Himself God, He endured to suffer these things at the hands of men; that after this, we men, when we suffer such things at the hands of men for His sake, might not be ashamed. You see that of these things also the prophets have clearly written beforehand. Many, however, of the Scripture testimonies I pass by for want of time, as I said before; for if one should exactly search out all, not one of the things concerning Christ would be left without witness.
Source: Catechetical Lectures (New Advent)