Romans 11:6-10

6And if by grace, then it cannot be based on works; if it were, grace would no longer be grace. 7What then? What the people of Israel sought so earnestly they did not obtain. The elect among them did, but the others were hardened,

8as it is written: “God gave them a spirit of stupor, eyes that could not see and ears that could not hear, to this very day.” Deut. 29:4; Isaiah 29:10

9And David says: “May their table become a snare and a trap, a stumbling block and a retribution for them.

10May their eyes be darkened so they cannot see, and their backs be bent forever.” Psalm 69:22,23