NET

15 For the heart of this people has become dull; they are hard of hearing, and they have shut their eyes, so that they would not see with their eyes and hear with their ears and understand with their hearts and turn, and I would heal them.’

Darby

15 for the heart of this people has grown fat, and they have heard heavily with their ears, and they have closed their eyes as asleep, lest they should see with the eyes, and hear with the ears, and understand with the heart, and should be converted, and I should heal them.

KJV

15 “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.”