Of all — Of all, your prophets. As a book — In which no man can read, while it is sealed up, as books then sometimes were, being made in the form of rolls. Delivered — Unsealed and opened.
Related Commentaries of Isaiah 29:12
Isaiah 29:12
12 And the book is delivered to him that is not learned, saying, Read this, I pray thee: and he saith, I am not learned.