Acts 28:26 in the King James Version
Saying, Go unto this people, and say, Hearing ye shall hear, and shall not understand; and seeing ye shall see, and not perceive:
Context
25 When they didn’t agree among themselves, they departed after Paul had spoken one message: “The Holy Spirit spoke rightly through Isaiah the prophet to our fathers,
26 saying, ‘Go to this people and say, in hearing, you will hear, but will in no way understand. In seeing, you will see, but will in no way perceive.
27 For this people’s heart has grown callous. Their ears are dull of hearing. Their eyes they have closed. Lest they should see with their eyes, hear with their ears, understand with their heart, and would turn again, then I would heal them.’