Matthew 13:15

For this people’s heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.’

Note Isaiah 6:9–10 (see also LXX)

For this people’s heart is waxed gross, and their ears are dull of hearing, and their eyes they have closed; lest at any time they should see with their eyes, and hear with their ears, and should understand with their heart, and should be converted, and I should heal them.

for this people’s heart has grown callous, their ears are dull of hearing, and they have closed their eyes; or else perhaps they might perceive with their eyes, hear with their ears, understand with their heart, and would turn again, and I would heal them.’

For this people’s heart is waxed gross, And their ears are dull of hearing, And their eyes they have closed; Lest haply they should perceive with their eyes, And hear with their ears, And understand with their heart, And should turn again, And I should heal them.