Isaiah 6:9-10 HCSB
And He replied:
Go! Say to these people:
Keep listening, but do not understand;
keep looking, but do not perceive.
Dull the minds of these people;
deafen their ears and blind their eyes;
otherwise they might see with their eyes
and hear with their ears,
understand with their minds,
turn back, and be healed.
HCSB: Holman Christian Standard Bible