“O Jerusalem, wash your heart from evil, that you may be saved” (v14). Rather than being all about obedience to the letter of the law, the Old Testament shows us a God who is concerned about the heart – just like the New Testament. Through Jeremiah, the Lord urged the Israelites to circumcise their hearts (v4), so that their obedience would flow naturally from love. The situation they were in, the rebellion that had led to their captivity among the Babylonians, started with a problem of the heart (v18).
“Break up your fallow ground” (v3). Hard-heartedness and stubbornness keep us from hearing the Lord’s voice. He calls us to humility and a soft heart in His presence.