Isaías 6

9 And He replied:

"Go and tell this people,

‘Be ever hearing, but never understanding;

be ever seeing, but never perceiving.’*6:9 Hebrew; LXX ‘You shall be ever hearing, but never understanding; you shall be ever seeing, but never perceiving.’Cited in Matthew 13:14, Mark 4:12, Luke 8:10, and Acts 28:26

10 Make the hearts of this people calloused;

deafen their ears and close their eyes.

Otherwise they might see with their eyes,

hear with their ears,

understand with their hearts,

and turn and be healed.*6:10 Hebrew; LXX 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.Cited in Matthew 13:15, Mark 4:12, John 12:40, and Acts 28:27"