In this chapter, the Gemara concluded that gentiles cannot undertake a vow of naziriteship, although it is permitted for them to sacrifice some of the offerings associated with it. Canaanite slaves are categorized as Jews with respect to naziriteship obligations. However, their masters can prevent them from observing this vow in practice, in which case the Canaanite slave must wait until he is emancipated before he can fulfill it. A married woman can accept naziriteship upon herself, but under certain circumstances her husband can nullify the vow and thereby absolve her from any obligation to fulfill it. A case can arise where a nazirite discovers his impurity only after the completion of his term. If the impurity in this situation was imparted by a grave in the depths, i.e., if the grave was unknown to anyone, the nazirite’s term is not negated. However, if the impurity could have been known, whether or not one can determine it was known in practice, his term is negated, and he must restart his naziriteship once he is purified. The leniency of the halakha of impurity imparted by a grave in the depths applies both to a nazirite, in that his term is not negated, and to an individual on his way to bring a Paschal offering, in that he need not bring an offering on the second Pesaḥ. This topic led to discussion in the Gemara about other cases involving uncertain impurity. With regard to impurity imparted by a corpse, the chapter addressed the issue of how to relocate a grave that has been discovered, including the size of the radius that must be examined outward from the grave to ascertain if there are other graves nearby. On a separate note, if an individual has not yet been determined to be a leper or a zav, the halakha is generally lenient in a situation where he might have been rendered impure. However, once one is definitely a leper or a zav, cases of uncertainty are treated stringently. In light of this ruling, the chapter examines a case where an individual beat another and the victim was diagnosed as fatally injured. If the victim improves but subsequently deteriorates and dies, one attributes his death to the beating and not to another factor. The chapter and the tractate as a whole end with aggadic statements praising a nazirite and a discussion as to whether the great prophet Samuel was a nazirite.