“The Treatise on the resurrection” is a Coptic translation of a Greek source text that not is preserved. The text belongs to the Nag Hammadi codices. The text is probably produced during the second century. In this thesis, the text will be placed in the Valentinian context, and then as the Valentinianism is presented in codices 1 and XI.1. The research object for the thesis is an examination of the concept “resurrection”, ἀνάστασις. The method is the author-intentional theory of meaning; the thesis focuses on the intents of the author and not the reader´s perspective. The analysis is based on the Coptic source text. A new translation with comments will also be presented. Scholars have unanimity presumed that the text proclaims a realised eschatology. However, from a Valentinian point of view, there is no sustainable evidence for this postulation. The text can also refer to a future “resurrection” with an intermediate state in the spiritual body of the Saviour. The author redefines the sense and meaning of “resurrection”.