Rabanus Maurus : For we require this admonition so that we will have always in our hearts the peace of Christianity, and will adopt the truth of the Gospel itself; which will prevent us from inadvertently falling, through discord and disagreement, into the errors of the heretics from which there can be no salvation but certain damnation and ruin. So all those who recognize that, through the seed of the word of God, they have been reborn in baptism from the Church and the ministry of the sacred teachers as sons to God the Father, are certainly required to fast in piety, i.e. to lead a pious, chaste and modest life; to send up the cries of their prayers and teachings; to celebrate the days of lots, i.e. of the victory to come, with reverence and firm hope; and to observe with robust faith and good works everything contained in the book of the two Testaments. — Commentary on Esther