Sephar appears as a geographical boundary marker in the Table of Nations, defining the eastern extent of the Joktan-ite tribes' territory in Arabia. The location has been tentatively identified with Ẓafār, an ancient Himyarite capital in southern Arabia, though this identification faces philological challenges. The name with directional suffix indicates 'toward Sephar,' showing it functioned as a known landmark. Precise location remains uncertain despite scholarly proposals.