Matthew 13:16

But blessed are your eyes. As the eyes of such as see and will not believe are miserable, so, he says, blessed are your eyes; you see my miracles, you hear my heavenly doctrines, &c. (St. Thomas Aquinas) --- Had we not read in a preceding part, that Christ exhorted his auditors to search after the knowledge of his words, we might perhaps have thought that Jesus here spoke of corporal eyes and ears; but the eyes here mentioned, seem to me to be those which can discern the mysteries of Christ. (St. Jerome in St. Thomas Aquinas)