TRADCATKNIGHT: Sermon on the Last Judgment--Sheep and Goats by St. Vincent Ferrer O.P.
A goat, however, which shows all, stands for the notoriously shameless person, because everyone knows his wicked life and sins, like wicked clergy, and other notorious cohabiters [concubinarii], nor do they wish to cover it up with the tail of penitence; they are impenitent. Therefore we should do penance. Now you see why the theme says, "He shall set the sheep on his right hand," (Mt 25:33). Thanks be to God. tradcatknight.blogspot.com/2018/04/sermon-on-last-judgment-sheep-and-goats.html