On the Memorial of Saint Catherine of Siena, this homily reflects on the true power that renews the Church: sanctity. Drawing from Catherine’s fearless witness, Fr. Paul shows how holiness, not status or influence, gives a person lasting spiritual authority. He connects her life to Jesus’ words about unity with the Father and the Church’s mission to speak God’s truth. The faithful are encouraged to seek holiness in their own lives and to trust the example and intercession of the saints.