Following are a number of back-translations as well as a sample translation for translators of Jeremiah 7:28:

• Kupsabiny: “Go and say to them, ‘You are a community that does not obey/respect what God is saying and you do not accept to become people with good habits. You no longer trust in me and you have become completely covered/buried.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “Therefore say this to them: This is the nation whose people would not obey the LORD their God, and do- not -want-to-be-taught/disciplined. Truth is no longer with them; they no longer speak the truth.” (Source: Hiligaynon Back Translation)
• English: “Say to them, ‘You people of Judah have not obeyed Yahweh, your God;
  you have not accepted it when he tried to correct you.
  No one among you is truthful;
  you do not say anything that is true; you speak only lies.’” (Source: Translation for Translators)