Yeremia 1:18

Leo nimekufanya mji wenye ngome, nguzo ya chuma, na ukuta wa shaba ili kusimama dhidi ya nchi yote: dhidi ya wafalme wa Yuda, maafisa wake, makuhani wake na watu wa nchi hiyo.

For, behold, I have made thee this day a defenced city, and an iron pillar, and brasen walls against the whole land, against the kings of Judah, against the princes thereof, against the priests thereof, and against the people of the land.