Isaiah 28:27
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. 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.
The fitches are beaten out with a staff and the cummin with a rod, each crop receiving the light implement suited to it. A threshing instrument is not used upon them, nor is a cart wheel turned about upon them, for such heavy crushing would be unfitting. Small and delicate seeds require this lighter, careful handling rather than severe force.
Skill in such ordinary work is taught by God, who instructs people in practical wisdom for each task. He gives farmers and workers discretion and skill to discern differences and to use the right and fitting method for each kind of labor. Careful, crop-specific work of this kind shows divine instruction in common skills.