3 A certain man in the Gospels once pried into the marriage feast, and took an unbecoming garment, and came in, sat down, and ate: for the bridegroom permitted it. But when he saw them all clad in white, he ought to have assumed a garment of the same kind himself: whereas he partook of the like food, but was unlike them in fashion and in purpose. The bridegroom, however, though bountiful, was not undiscerning: and in going round to each of the guests and observing them (for his care was not for their eating, but for their seemly behaviour), he saw a stranger not having on a wedding garment, and said to him, Friend, how did you get in here? In what a colour! With what a conscience!
What though the door-keeper forbade you not, because of the bountifulness of the entertainer? What though you were ignorant in what fashion you should come in to the banquet? — you came in, and saw the glittering fashions of the guests: should you not have been taught even by what was before your eyes? Should you not have retired in good season, that you might enter in good season again? But now you have come in unseasonably, to be unseasonably cast out. So he commands the servants, Bind his feet, which daringly intruded: bind his hands, which knew not how to put a bright garment around him: and cast him into the outer darkness; for he is unworthy of the wedding torches. You see what happened to that man: make your own condition safe.
Source: Catechetical Lectures (New Advent)