His — Israel's. Watchmen — Priests and teachers; he mentions only the teachers, because ignorance was most shameful in them, but hereby he supposes the gross ignorance of the people. Bark — They are also slothful and negligent in instructing the people, and do not faithfully reprove them for their sins.
Related Commentaries of Isaiah 56:10
Isaiah 56:10
10 His watchmen are blind: they are all ignorant, they are all dumb dogs, they cannot bark; sleeping,b lying down, loving to slumber.