Jeremiah 4:3-4

3This is what the LORD says to the people of Judah and to Jerusalem: “Break up your unplowed ground and do not sow among thorns.

4Circumcise yourselves to the LORD, circumcise your hearts, you people of Judah and inhabitants of Jerusalem, or my wrath will flare up and burn like fire because of the evil you have done— burn with no one to quench it.