Following are a number of back-translations as well as a sample translation for translators of Jeremiah 13:12:

• Kupsabiny: “God, the God of Israel, said to me, ‘Tell the people of Israel that every (goat)skin is to be filled with wine. And when/if they say to you, ‘Do you think that we do not know that every (goat)skin is to be filled with wine?’” (Source: Kupsabiny Back Translation)
• Hiligaynon: “‘Jeremias, tell the people of Israel that I, the LORD, the God of Israel says, ‘All your (plur.) leather/[lit. skin] containers of wine will-be-filled with wine.’ And if they will-say to you (sing.), ‘We (excl.) already knew that all our (excl.) leather/[lit. skin] containers will-be-filled with wine,’” (Source: Hiligaynon Back Translation)
• English: “‘So, tell this to them: ‘Yahweh, the God whom you Israeli people worship, says that every leather wineskin should be filled with wine.’ And when you tell that to them, they will reply, ‘Of course/Certainly we know that all wineskins should be filled with wine!’” (Source: Translation for Translators)