other times the variation seems to be a rhetorical device to highlight elements in the text or to indicate structural units. Sometimes a shift in number was caused by the presence of a traditional formula or a quotation from another text (cf. 11:19b quoting 6:7b). Occasionally a genuine change of addressee seems to be indicated. Deuteronomy uses the collective singular to address the entire community, but shifts to the plural to focus on the individuals who make up the community in order to highlight