When the eremitic monk and reformer Peter Damian cast his critical gaze upon the Catholic Church of the mid-eleventh century, he encountered a panorama of corruption that would have appeared daunting even to the most hardened observer of the modern ecclesiastical scene. The “household of God” was in a catastrophic state of moral disorder, admitting of no easy remedy. The crisis of the period, and Damian’s heroic response, offers much of historical value to us as we confront our own explosion of clerical vice and doctrinal infidelity.
The Church of Damian’s time had been rocked by almost two centuries of political and social chaos, and the doctrinal ignorance, scandalous personal behavior, and petty venality of the clergy had reached intolerable levels. Bishops and priests were involved in every kind of immorality, publicly living with concubines or illicit wives, or furtively engaging in ɧoɱosɛҳųαƖ practices. Many had purchased their ordinations and the lucrative benefices that accompanied them, and spent their free time in scandalous secular amusements. An outraged laity was beginning to rise up against ecclesiastical authority, sometimes in riotous outbursts of violence that threatened the civil order.
The pinnacle of the crisis was reached in the year 1032 with the election of Pope Benedict IX, a raucous and libertine youth of no more than twenty-two years of age, and the latest and worst in a long succession of compromised popes who served wealthy and powerful secular patrons. Mercifully, few details of Benedict’s personal behavior have been preserved in historical accounts, but the pope’s “vile and contemptible life,” his “rapine, murders, and other nefarious deeds,” and his “depraved and perverse acts,” in the words of the future Pope Victor III, were widely known in his day.

https://www.catholicworldreport.com/2018/09/27/st-peter-damians-battle-against-clerical-ɧoɱosɛҳųαƖity-offers-useful-lessons-for-today/

A devastating analysis of a crisis
Most relevant to our own age is Damian’s famous Liber Gomorrhianus, or “Book of Gomorrah,” a long letter in the form of a libellus addressed to Pope St. Leo IX sometime between 1049 and 1054. The book, which is written against an epidemic of sodomy “raging like a cruel beast within the sheepfold of Christ” has deep resonance with us today, and offers many insights into the contemporary crisis in the priesthood.

Damian’s opening words almost seem addressed to the contemporary Church, as he warns the pope that the “cancer of sodomitic impurity” is threatening the integrity of the clergy itself, and urges him to act with all speed, adding that “unless the force of the Apostolic See opposes it as quickly as possible, there is no doubt that when it finally wishes for the unbridled evil to be restrained, it may not be able to halt the fury of its advance.”
One of the most important elements offered to the modern reader by Damian’s work is his understanding of “sodomy” not merely as a sɛҳuąƖ perversion involving two people of the same sex, but rather a continuum of sins that progressively depart from the nature of the sɛҳuąƖ act. This continuum begins with acts such as contraception and self-abuse, which then ranges to various acts involving accomplices, each more unnatural and shameful than the other. It is significant to note that in Damian’s eyes, the majority of Catholics today are practicing a form of “sodomy,” one that may easily lead to worse perversions. This insight may offer a useful explanation for the pervasive indifference to ɧoɱosɛҳųαƖ behavior among modern Catholics – most of them are engaged in behavior that is fundamentally similar.

https://www.catholicworldreport.com/2018/09/27/st-peter-damians-battle-against-clerical-ɧoɱosɛҳųαƖity-offers-useful-lessons-for-today/