 Ben Naphtali wrote a Bible with vowels, accents, and Masorah, which differed in some respects from that of his contemporary and rival, Aaron ben Moses ben Asher (generally called Ben Asher).This Bible codex has not been preserved, but the differences between it and Ben Asher's version are found in incomplete Masoretic lists found in quotations in David Ḳimḥi, Norzi, and other medieval writers as well as in manuscripts such as British Museum MS. Harley 1528.These lists are printed in the Mikraot Gedolot (rabbinical Bible), in the texts of Baer-Delitzsch and Christian David Ginsburg's Masorah vol.