Isaiah 19:13

are become fools Better are befooled "stultified." Nophis Memphis, the capital of Lower Egypt, and an ancient seat of Egyptian religion and learning. An older form of the Hebrew name is apparently Moph(Hosea 9:6); both forms are perhaps contracted from Mnoph(hieroglyphic Mennofer). The city was situated in the southern corner of the Delta, near Cairo, which was largely built from its ruins.

even they that are the stay of the tribes thereof Render the corner-stone of her tribes, i.e. her ruling caste. For the metaphor, cf. Judges 20:2; 1 Samuel 14:38; Zechariah 10:4. The "tribes" may be either the castes or the nomes (cantons).