Deuteronomy 6:4

Hear, O Israel] So Deu_9:1; Deu_20:3, and similarly Deu_4:1, Deu_6:3; and nowhere else in the Hexateuch. The Sg. is to be explained as in Deu_5:1; but the continuance of the Sg. through the rest of this section is (especially if it is to follow immediately on Deu_6:1, see above) analogous to the appearance of the Sg. of the Decalogue in a Pl. context. There, as here, Moses uses the Pl. address for his own words, but quotes what God gave him at Ḥoreb in the Sg.