They have not known nor understood: for he hath shut their eyes, that they cannot see; and their hearts, that they cannot understand. He hath shut their eyes "Their eyes are closed up" - The Septuagint, Chaldee, and Vulyate, for טח tach, read טחו tachu. See note on Isaiah 6:10.
Related Commentaries of Isaiah 44:18
Isaiah 44:18
18 They have not known nor understood: for he hath shutd their eyes, that they cannot see; and their hearts, that they cannot understand.