Following are a number of back-translations as well as a sample translation for translators of Jeremiah 31:14:

• Kupsabiny: “I will bless/give the priests enough food
  and I will also bless my people with many things.’” (Source: Kupsabiny Back Translation)
• Hiligaynon: “I will-give the priests abundant offerings. I will fill/satisfy my people with blessings. I the LORD, (am) the-(one) saying this.’” (Source: Hiligaynon Back Translation)
• English: “The priests will have plenty of things to eat and drink,
  and all my people will be filled with the good things that I give them.
  That will certainly happen because I, Yahweh, have said it!’” (Source: Translation for Translators)