Pojmovi gnosticizam i pelagijanizam poznati su teolozima, povjesničarima, religiolozima, filozofima i drugim istraživačima humanističkoga područja. Kao pojedinačne pojmove možemo ih od vremena do vremena čuti i u kolokvijalnom govoru, posebice izvedenicu agnosticizam ili agnostik. Do pobudnica pape Franje ova dva pojma bila su vezana uz crkvene hereze s početaka života Crkve. Članak, u povijesni kontekst ove hereze smješta Papin govor o gnosticizmu i pelagijanizmu kojeg započinje svojom pobudnicom Evangelii gaudium, a proširuje ga u pobudnici Gaudete et exsultate. Nakon kratkog prikaza klasične uporabe ovih pojmova i problematike koja se uz njih veže, kao i Papine interpretacije ovih pojmova, članak odgovara na pitanje jesu li ovi pojmovi uistinu »zapreka« na putu svetosti ili izvor konfuzije. The terms »Gnosticism« and »Pelagianism« are known to theologians, historians, religious scholars, philosophers, and other scholars of the humanities. As individual terms we may hear them from time to time in colloquial speech, especially the derivative »agnosticism« or »agnostic«. Until the apostolic exhortations of Pope Francis, these two nominations were related to Church heresies from the beginning of the Church teachings. The article, in the historical context of this heresy, places the Pope’s speech on Gnosticism and Pelagianism, which he begins in his apostolic exhortation »Evangelii Gaudium« and extends it in the apostolic exhortation »Gaudete et exsultate«. After a brief account of the classical use of these terms and the problems associated with them, as well as the pope’s interpretation of these terms, the article answers the question of whether these terms are truly a »barrier« to the path of holiness or a source of confusion.