TSK · Mark 8:18

but Yahweh has not given you a heart to know, and eyes to see, and ears to hear, to this day.

They have mouths, but they don't speak. They have eyes, but they don't see.

"Hear, you deaf, and look, you blind, that you may see.

'Hear now this, foolish people, and without understanding; who have eyes, and don't see; who have ears, and don't hear:

In them the prophecy of Isaiah is fulfilled, which says, 'By hearing you will hear, and will in no way understand; Seeing you will see, and will in no way perceive:

"He has blinded their eyes and he hardened their heart, lest they should see with their eyes, and perceive with their heart, and would turn, and I would heal them."

According as it is written, "God gave them a spirit of stupor, eyes that they should not see, and ears that they should not hear, to this very day."

Therefore I will not be negligent to remind you of these things, though you know them, and are established in the present truth.