Following are a number of back-translations as well as a sample translation for translators of 2 Kings 3:12:

• Kupsabiny: “Jehoshaphat said, ‘Yes, he is a true prophet of God.’ Then, the ruler of Israel and Jehoshaphat together with the ruler of Edom got up and went down to where Elisha was.” (Source: Kupsabiny Back Translation)
• Newari: “King Jehoshaphat said, "The word of the LORD is with him." So the King of Israel, Jehoshaphat and the King of Edom went to him.” (Source: Newari Back Translation)
• Hiligaynon: “Jehoshafat said, ‘So/Well, the LORD can-speak through him.’ So the king of Israel, Juda, and Edom went to Elisha.” (Source: Hiligaynon Back Translation)
• English: “Jehoshaphat said, ‘It will be good to ask him, because he speaks what Yahweh tells him to say.’
  So those three kings went to Elisha.” (Source: Translation for Translators)