The lecture draws a parallel between the biblical call of Abraham and the mission of the Irish apostle, portraying the saint as chosen to preserve Christian truth during widespread social and religious collapse. It surveys the continental turmoil of the early medieval era and locates a fertile western island as a sanctuary where faith and ancient customs endured. The speaker praises enduring Irish traits such as generosity, quick wit, and hospitality, and examines traditional institutions like tanistry and gavelkind as expressions of communal liberty and resistance to primogeniture and landlordism. Overall it combines hagiography, historical context, and cultural commentary to celebrate the saintly mission and native institutions.