Yeshayah 29:10-12

Orthodox Jewish Bible

¹⁰ For Hashem hath poured out upon you the ruach tardemah (spirit of deep sleep), and hath closed your eynayim; namely, that of the nevi’im and your heads, you seers, hath He covered.

¹¹ And the whole vision is become unto you as the devarim of a sefer that is sealed, which men deliver to one that is learned, saying, Read this, now; and he saith, I am not able; for it is sealed;

¹² And the sefer is delivered to him that with the sefer has no da’as, saying, Read this, now; and he saith, I cannot read this. With sefer I have no da’as.