'Unplowed' in the Bible

Yes, the Lord has this to say to the people of Judah and Jerusalem: "Like a farmer breaking up hard unplowed ground, you must break your rebellious will and make a new beginning; just as a farmer must clear away thorns lest the seed is wasted, you must get rid of the sin that is ruining your lives.

Ephraim was a well-trained heifer who loved to thresh grain; I myself put a fine yokeon her neck. I will harness Ephraim. Let Judah plow! Let Jacob break up the unplowed ground for himself!

Sow righteousness for yourselves, reap unfailing love. Break up the unplowed ground for yourselves, for it is time to seek the Lord, until he comes and showers deliverance on you.