Sommer saw in and a case in which one Biblical author explicitly interpreted another Biblical text. Both texts provide regulations concerning the Passover sacrifice, but the regulations differ. instructed the Israelites to boil the Passover sacrifice. Sommer argued that takes issue with on this point, however, warning (in Sommer's translation), "Don’t eat it raw or boiled in water; rather, it roasted in fire." Sommer did not find such a disagreement in this ancient Jewish literature surprising, arguing that two groups in the Biblical period agreed that the Passover sacrifice was important but disagreed on its precise details.