Through Jeremiah, God commanded the people of Judah to break up their fallow ground so they could plant a new crop. Hosea was inspired to write:
“Sow righteousness for yourselves and reap faithful love; break up your untilled ground. It is time to seHithe Lord until He comes and sends righteousness on you like the rain. You have plowed wickedness and reaped injustice; you have eaten the fruit of lies” (Hosea 10:12-13).

If you are not as close to the Lord as you know you should be, ask yourself, who moved? You can be sure God has not moved. It is time for you to break up your fallow ground and plant sow seeds of righteousness.
There is one word that I must add. If you are not a Christian, you have no field. That is, you no have no inheritance in the Kingdom of God. You cannot let a field go fallow if you have never had it in the first place. If you will confess sin in your life, repent, believe in Jesus Christ for the forgiveness of your sin, you will have an eternal inheritance in Him.
If you are a Christian and you know you need to repent and return to the Lord, remember that when God commands you to break up your fallow ground, only He can remove sin. What you must do is look to Him in faith. Repent, return, and He will restore you to fellowship and make your life fruitful. Trust Him, and you will begin breaking up your fallow ground, and then you can sow to righteousness.