Today’s readings bring us to the end of Cyprian’s On the Unity of the Church with a call to peace, generosity, and watchfulness. Cyprian warns that the failure of some confessors does not destroy the faithfulness of the Church, just as Judas’s betrayal did not overthrow the apostolic witness; instead, believers must flee schism, seek peace, remain one in heart and soul, and recover the generosity and vigilance that mark true faith. Augustine then records Monica’s astonishing contentment after seeing her deepest earthly hope fulfilled: Augustine has become a Catholic Christian and servant of God, and she no longer sees any reason to cling to this life. Aquinas closes the day by examining unbelief, distinguishing ignorance from willful resistance to revealed truth and showing why unbelief is especially grave when someone rejects or corrupt ...