The study investigates the texts and representations of snakes and snake-like creatures depicted on the north and west walls of the burial chamber of the Late Period shaft tomb of the priest Iufaa in Abusir. The analysis of the inscriptions indicates that that the mythological compositions and allusions to mythological events in the texts that accompany the snake-like beings explain and underlie the various actions of the purification ritual of the Egyptian king, as adapted for Iufaa on the northern wall of the burial chamber.