Esias 6:10

10 For the heart of this people has become gross, and their ears are dull of hearing, and their eyes have they closed; lest they should see with their eyes, and hear with their ears, and understand with their heart, and be converted, and I should heal them.

Esias 6:10 In-Context

8 And I heard the voice of the Lord, saying, Whom shall I send, and who will go to this people? And I said, behold, I am , send me. And he said, Go, and say to this people,
9 Ye shall hear indeed, but ye shall not understand; and ye shall see indeed, but ye shall not perceive.
10 For the heart of this people has become gross, and their ears are dull of hearing, and their eyes have they closed; lest they should see with their eyes, and hear with their ears, and understand with their heart, and be converted, and I should heal them.
11 And I said, How long, O Lord? And he said, Until cities be deserted by reason of their not being inhabited, and the houses by reason of there being no men, and the land shall be left desolate.
12 And after this God shall remove the men far off, and they that are left upon the land shall be multiplied.

The Brenton translation of the Septuagint is in the public domain.