In this study, Paavo N. Tucker considers the different models of formation for the Priestly literature of the Pentateuch through an analysis of the Priestly texts in Exodus and how they relate to the Holiness Code in Lev 17-26. The texts in Exodus that are traditionally assigned to the Priestly Grundschrift are not concerned with the priestly matters of Exod 25-Lev 16, but are better understood as relating to the language, theology, and concerns of Lev 17-26, and should be assigned to the same strata of H with Lev 17-26. The same applies to the Priestly narratives beginning in Gen 1. The Priestly literature in Gen 1-Lev 26 form a composition that develops the themes of creation, Sabbath, sanctuary, and covenant to their climactic expression and culmination in the legal promulgation and ethical paraenesis of H in Lev 17-26. The author shows that, rather than being a "Priestly composition" as Erhard Blum argues, it is more fitting to see this literature as an "H composition," which weaves narrative and law together in order to motivate obedience to the laws of Lev 17-26.