For a many years, textual criticism of the Hebrew Bible relied on low-quality editions of the Syriac version (Peshitta). The Leiden critical edition was an improvement, but it still depended on a manuscript (7a1) with many secondary readings. This thorough study of the textual development of Syriac versions in Leviticus, Numbers, and Deuteronomy, creates the first genealogical tree of the manuscripts, thereby recovering the most original text of the Peshitta. This research sheds light on the origins of the translation and paves the way for a future, eclectic edition of the Syriac version.