William Blake on the voice of God

"The Prophets Isaiah and Ezekiel dined with me, and I asked them how they dared so roundly to assert, that God spoke to them; and whether they did not think at the time, that they would be misunderstood, & so be the cause of imposition.

Isaiah answer'd, I saw no God, nor heard any, in a finite organical perception; but my senses discover'd the infinite in every thing, and as I was then persuaded, & remain confirm'd; that the voice of honest indignation is the voice of God, I cared not for...