Romans 11:8 ASV

⁶  But if it is by grace, it is no more of works: otherwise grace is no more grace.

⁷  What then? that which Israel seeketh for, that he obtained not; but the election obtained it, and the rest were hardened:

⁸  according as it is written, God gave them a spirit of stupor, eyes that they should not see, and ears that they should not hear, unto this very day.

⁹  And David saith, Let their table be made a snare, and a trap, And a stumblingblock, and a recompense unto them:

¹⁰  Let their eyes be darkened, that they may not see, And bow thou down their back always.