Scholars have suggested numerous theories. My approach is close to that of Martin Noth as elucidated in “The ‘Priestly Writing’ and the Redaction of the Pentateuch,” which appeared in 1943. The English translation of this work appeared only in 1987 (in Martin Noth, The Chronicler’s History [Sheffield: JSOT Press, 1987], pp. 107–147), so English-speaking scholars seem not to have consulted it, relying instead on Noth’s A History of Pentateuchal Traditions (Englewood Cliffs: Prentice-Hall, 1972), pp. 8–19, 234–247.