Following are a number of back-translations as well as a sample translation for translators of Jonah 2:8:

• Kupsabiny: “But/And the people who believe in false gods/vain idols,
  those ones loose the thing
  you would have given them in love.” (Source: Kupsabiny Back Translation)
• Newari: “Those who worship useless idols
  abandon [their] devotion to the LORD.” (Source: Newari Back Translation)
• Hiligaynon: “A person/man who worships worthless little-gods/false-gods rejects their love for you (sing.).” (Source: Hiligaynon Back Translation)
• Kankanaey: “Those who worship false/imitation-gods that have no use, they have turned-their-backs-on their loyal love to you (sing.).” (Source: Kankanaey Back Translation)
• English: “All those who worship worthless idols are rejecting you, the one who could act kindly toward them.” (Source: Translation for Translators)