10 Here we must call your attention, venerable brethren, to the special instruction which we wish given regarding the ministry of the Divine Word;(11) and from which we desire they should draw copious fruit. With respect to the ministry of the confession: let them remember how severe are the words of the most enlightened and mildest of moralists towards those who, without purifying their own souls, do not hesitate to seat themselves in the tribunal of Penance,(12) and how not less severe is the lament of the late great Pontiff, Benedict XIV, who numbers among the greatest calamities of the Church the defect in confessors of a science, both theological and moral, added to the gravity that such a holy office requires.
Source: Fin dal Principio (Vatican.va)