Isaiah 28:27-28
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27Dill is not threshed with a threshing sledge, nor is a cart wheel rolled over cummin; but dill is beaten out with a stick, and cummin with a rod. 28Does one crush bread grain? No, he does not thresh it for ever; when he drives his cart wheel over it with his horses, he does not crush it.
Isaiah 28:27-28 (RSV)