84. Let us then keep the feast on good food, doing
penance yet joyful in our redemption, for no food is sweeter than
kindness and gentleness. Let no envy towards the sinner who is
saved be mingled with our feasts and joy, lest that envious brother, as
is set forth in the Gospel, exclude himself from the house of his
Father, because he grieved at the reception of his brother, at whose
lasting exile he was wont to rejoice.