Rolf Rendtorff subjects, but was notable chiefly for his 1977 book, "Das überlieferungsgeschichtliche Problem des Pentateuch" ("The Problem of the Transmission of the Pentateuch"). The book was a study of the question of Pentateuchal origins (the question of how the first five books of the bible – Genesis, Exodus, Leviticus, Book of Numbers and Deuteronomy – came to be written), and appeared at the same time as two other important books, John Van Seters' "Abraham in History and Tradition" (1975), and Hans Heinrich Schmid's "Der sogenannte Jahwist" ("The So-called Yahwist") (1976). The three studies, appearing almost together, inaugurated a heated discussion in
Old Saxon Genesis of Satan employing a "hæleðhelm" or helm of disguise. Old Saxon Genesis Genesis is an Old Saxon Biblical poem recounting the story of the Book of Genesis, dating to the first half of the 9th century, three fragments of which are preserved in a manuscript in the Vatican Library, "Palatinus Latinus" 1447. It and the "Heliand", a heroic poem based on the New Testament, a fragment of which is also included in the same manuscript, constitute the only record of Old Saxon poetry. It is also the basis of the Anglo-Saxon poem known as "Genesis B", and Eduard Sievers postulated