Scott Hahn has brought a deep understanding of the scriptural roots of the Church's teaching and a new verve and freshness of language to mainstream Catholic theology. His bestselling books on the Mass, on marriage and the family, and on Mary have stimulated a dialogue with Christians of every spiritual tradition. In Lord, Have Mercy Hahn turns to the Catholic Church's teaching on confession and forgiveness. He argues that the sacrament of confession is the key to spiritual growth, more relevant than ever in these times of anxiety and uncertainty. Once again, Hahn reveals the scriptural heart of a traditional teaching, in a way that is both wholly original, and wholly orthodox.