Deuteronomy 5:1

called unto i.e. summoned together. So rightly LXX.

all Israel D's characteristic phrase for the people: see Deuteronomy 4:44.

Hear, O Israel The verb is the only Sg. in this Pl. passage. So in the same association in other Pl. passages: Deuteronomy 4:1; Deuteronomy 20:3 (cp. Deuteronomy 1:8):

the statutes and the judgements also characteristic of D.

observe to do also characteristic of D; occurring some 20 times both with Sg. and Pl.; but many of the instances are editorial.