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28 Bread [lechem] corn is bruised [daqaq]; because he will not ever [netsach] be threshing ['adash][duwsh] it, nor break [hamam] it
with the wheel [gilgal] of his cart [`agalah], nor bruise [daqaq] it with
his horsemen [parash]. KJV-Interlinear
28 Does one
crush grain for bread? No, he does not thresh it forever; when he drives his
cart wheel over it with his horses, he does not crush it. ESV
Answers To Study Question(s)
Answer:
Because to continue doing the same thing would serve no purpose when the job is done, and there is other work to do. So too, God does things for a while until their usefulness is no longer useful, and He moves on to another tool or method.