Following are a number of back-translations as well as a sample translation for translators of Deuteronomy 18:21:

• Kupsabiny: “You might think/say in your stomachs, ‘How can we know a word that God has not spoken?’” (Source: Kupsabiny Back Translation)
• Newari: “You may ask yourselves like this — "How will we know if the words of any prophet come from the LORD or not?"” (Source: Newari Back Translation)
• Hiligaynon: “‘You (plur.) might ask, ‘How will we (excl.) know that the message of the prophet belongs to the LORD?’” (Source: Hiligaynon Back Translation)
• English: “But if you say to yourself, ‘How can we know if a message that someone tells us does not come from Yahweh?’” (Source: Translation for Translators)