The article aims to show the British-Irish Church and the legal and moral problems encountered by this congregation in the light of the Discipulus Umbriensium handbook of penance written by the Bishop of Canterbury. Priests were to ensure that inappropriate behaviors of the members of the Church were eliminated through the sacrament of confession, during which the penitent was also expected to answer the questions asked by the confessor, as well as through meticulous and long-term penance. Such inappropriate behaviors included cases of plural marriage or dissolution of marriage based on mutual consent. The sacrament of confession was also an opportunity to verify if the penitents entered into marriage despite the impediment of impotence or age, and therefore entered into it in an invalid way. The handbook of penance also referred to the then very popular Pauline privilege and the circumstances in which it could be applied. It also spoke about receiving the Communion by the spouses and specific limitations and suggestions when it should be received by them as often as possible.