Read Isaiah 28:27 Using Other Translations
For the fitches are not threshed with a threshing instrument, neither is a cart wheel turned about upon the cummin; but the fitches are beaten out with a staff, and the cummin with a rod.
Dill is not threshed with a threshing sledge, nor is a cart wheel rolled over cumin, but dill is beaten out with a stick, and cumin with a rod.
A heavy sledge is never used to thresh black cumin; rather, it is beaten with a light stick. A threshing wheel is never rolled on cumin; instead, it is beaten lightly with a flail.