{Sit on Moses' seat} (epi t(8873) M(9375)se(9373) kathedras
ekathisan). The gnomic or timeless aorist tense, ekathisan,
not the aorist "for" the perfect. The "seat of Moses" is a brief
form for the chair of the professor whose function it is to
interpret Moses. "The heirs of Moses' authority by an unbroken
tradition can deliver _ex cathedra_ pronouncements on his
teaching" (McNeile).