NET
12 so that although they look they may look but not see, and although they hear they may hear but not understand, so they may not repent and be forgiven.”
Darby
12 that beholding they may behold and not see, and hearing they may hear and not understand, lest it may be, they should be converted and they should be forgiven.
KJV
12 “That seeing they may see, and not perceive; and hearing they may hear, and not understand; lest at any time they should be converted, and” [their] “sins should be forgiven them.”