Abstract: The author makes a vast analysis of the ecumenical document written after the dialogue between the German Conference of the Catholic Bishopric and the Federation of the Evangelic Churches in Germany. Published in 2000, the document “Communio Sanctorum. The Church as Community of Saints” is the result of a bilateral debate over three decades. The author of the study presents the steps that preceded the document discussed, explains the genesis and the ecclesiological meaning of the formula Communio Sanctorum, lists the implications of the resource to the biblical authority and analyzes the theological disagreements. From the Evangelic-Lutheran perspective of the author, the most problematic of disagreements refers to the connection between the reforming principle Sola Scriptura and the papal authority.

Keywords: Communio Sanctorum, papal primacy, Catholic-Lutheran dialogue, Sola Scriptura, theological disagreement.