This article takes a closer look at Juliusz Słowacki's poetic drama Ksiądz Marek ( Father Marek) from the perspective of its links and affinities with some of the prophetic books of the Bible. A comparison of the text of the drama with parallel passages of the Book of Isaiah and the Book of Ezekiel in the Jakub Wujek Bible throws into sharp relief the prophetic-visionary characterization of the title hero (whose real-life prototype the Franciscan friar Marek Jandołowicz was the charismatic leader of the Bar Confederation) as well as other dramatis personae (especially Klemens Kosakowski). Comparing parallel passages not only brings to light Słowacki's use of Old Testament imagery but also reveals a multilevel embedment of the drama in the biblical vision of God's work in the world. It seems that this aspect of Słowacki's creative art has not been fully appreciated in the critical readings of the drama. His relationship with the Bible should be treated as something more fundamental than a an indicator of his religious faith and, also, as a respectful and critical commitment to a narrative model of ageless relevance.