Charles Ellicott Commentary Isaiah 29:10

"For Jehovah hath poured out upon you the spirit of deep sleep, and hath closed your eyes, the prophets; and your heads, the seers, hath he covered." — Isaiah 29:10 (ASV)

The Lord has poured out upon you ... —The prophet sees in the stupor and panic of the chief of the people what we call a judicial blindness, the retribution of those who had willfully closed their eyes against the light. .

Your rulers. —Literally, your heads, the word being in apposition with the seers. The word is emphasized with a keen irony, precisely because they did not see. They were as those who sleep, and are “covered,” their mantle wrapped round their head, as when men settle themselves to sleep.