'Harrow' in the Bible

“Can you bind the wild ox in a furrow with ropes,Or will he harrow the valleys after you?

Does the farmer plow continually to plant seed?Does he continually turn and harrow the ground?

Ephraim is a trained heifer that loves to thresh,But I will come over her fair neck with a yoke;I will harness Ephraim,Judah will plow, Jacob will harrow for himself.