John Chrysostom — as excerpted in the Catena Aurea on Luke 18:9-14

“He heard the words, that I am not as the Publican. He was not angry, but pricked to the heart. The one uncovered the wound, the other seeks for its remedy. Let no one then ever put forth so cold an excuse as, I dare not, I am ashamed, I cannot open my mouth. The devils have that kind of fear. The devil would fain close against thee every door of access to God.”