The Augustinian doctrine of the damnation of unbaptized infants and the Calvinistic doctrine of reprobation… surpass in atrocity any tenets that have ever been admitted into any pagan creed.

Lecky makes this remark in the course of a polemical historical discussion of how Christian theological systems treated the fate of those outside the visible Church—especially infants who die before baptism—and how such doctrines affected moral sentiment in Europe. Writing as a liberal Victorian historian, he contrasts what he sees as the ethical “softening” of Western thought over time with earlier dogmatic severity. The sentence appears amid his critique of Augustinian and later Calvinist predestinarian logic, where inherited guilt and divine sovereignty can imply eternal punishment for persons incapable of personal moral choice. The comparison to “pagan creed” is part of his broader argument that certain Christian dogmas could be morally harsher than pre-Christian religions.

Lecky is arguing that some influential strands of Western Christian theology produced conclusions that offend basic moral intuitions: that infants, lacking conscious agency, could be eternally punished (in some Augustinian accounts) and that some humans are eternally “passed over” or ordained to damnation (in strict Calvinist reprobation). By calling these doctrines more atrocious than anything in paganism, he reverses a common apologetic claim that Christianity necessarily improved ethics. The force of the line lies in its appeal to moral responsibility and proportional justice: a system that condemns the morally incapable appears, to Lecky, to undermine the credibility of the religion’s moral teaching and to illustrate how abstract doctrinal consistency can conflict with humane sentiment.