In studies on the composition of prophetic literature, the larger textual layers reinterpreting earlier texts, the so-called Fortschreibungen, received much attention. It is well-known that beside these larger literary elaborations prophetic books also contain shorter explanatory interpolations, often called glosses, which intend to clarify a particular imagery of the prophecy (e.g., Isa 9:14). A systematic reading of these short annotations has been neglected, however, in studying the formation of prophetic books. The present article reconsiders the Isaiah-Memoir from this perspective.