Following are a number of back-translations as well as a sample translation for translators of Jeremiah 9:14:

• Kupsabiny: “Instead of following, they did what their stomachs wanted in rebellion, and they even went to worship Baal as their forefathers had taught them.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “Instead, they followed the hardness of their heart. They worshipped the images of Baal as-what their ancestors have-taught them.” (Source: Hiligaynon Back Translation)
• English: “Instead, they have stubbornly done the things that they wanted to do.
  They have worshiped the idols that represent the god Baal,
  which is what their ancestors did.” (Source: Translation for Translators)