Jeremiah 4:3

4:3 For thus saith the LORD to the men of Judah and Jerusalem, Break up your fallow ground, and sow not among thorns.

Hosea 10:11-12

10:11 And Ephraim [is as] an heifer [that is] taught, [and] loveth to tread out [the corn]; but I passed over upon her fair neck: I will make Ephraim to ride; Judah shall plow, [and] Jacob shall break his clods. 10:12 Sow to yourselves in righteousness, reap in mercy; break up your fallow ground: for [it is] time to seek the LORD, till he come and rain righteousness upon you.