We may here well inquire, why Christ forbids the healed demoniac who wished to follow Him, but permits the blind man who had received his sight. There seems to be a good reason for both the one case and the other. He sends away the former as a kind of herald, to proclaim aloud by the evidence of his own state his benefactor, for it was indeed a notable miracle to see a raving madman brought to a sound mind. But the blind man He allows to follow Him, since He was going up to Jerusalem about to accomplish the high mystery of the Cross, that men having a recent report of a miracle might not suppose that He suffered so much from helplessness as from compassion.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Chrys. ubi sup.