Salmos 2

Thou shalt break them with a rod of iron; thou shalt dash them in pieces like a potter’s vessel.
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A 'vara de ferro' representa julgamento inflexível. Apocalipse 2:27, 12:5 e 19:15 aplicam esta imagem ao governo messiânico de Cristo.
Be wise now therefore, O ye kings: be instructed, ye judges of the earth.