Isaiah 29:10

29:10 For the Lord has poured out on you

a strong urge to sleep deeply.

He has shut your eyes (the prophets),

and covered your heads (the seers).

Isaiah 66:22

66:22 “For just as the new heavens and the new earth I am about to make will remain standing before me,” says the Lord, “so your descendants and your name will remain.

tn Heb “a disposition [or “spirit”] of deep sleep.” Through this mixed metaphor (sleep is likened to a liquid which one pours and in turn symbolizes spiritual dullness) the prophet emphasizes that God himself has given the people over to their spiritual insensitivity as a form of judgment.