You shall not fear them: English translations make it appear that Moses is addressing Joshua; but the plural forms in Hebrew make it clear that Moses is speaking to all the people, and not only to Joshua. A translation should make that clear if the target language, like English, does not have different forms for the singular and the plural.

Quoted with permission from Bratcher, Robert G. and Hatton, Howard A. A Handbook on Deuteronomy. (UBS Helps for Translators). New York: UBS, 2000. For this and other handbooks for translators see here .