On the Catholic Priesthood
Blasphemy and Sodomy
"I might also add, that if blasphemy is a terrible thing, I am not aware that sodomy is any better. The former indeed causes a man to err; the latter brings him to perdition. The one separates the soul from God; the other joins it to the devil. The former expels one from heaven; the latter buries him in hell. The one blinds the eyes of the soul; the other hurls one into the abyss of ruin. And if we are careful to investigate which of these crimes is the weightier in the scales of divine scrutiny, a search of Sacred Scripture will provide a satisfactory answer. There, indeed, we find that the children of Israel who blaspheme God and worshiped idols were taken into captivity; but we notice that sodomites were devoured in the sulphurous flames of a fire from heaven"
Source: Peter Damian: Book of Gomorrah