that seeing they may see and not perceive; and hearing they may hear, and not understand, that not ever they should convert, and the sins be remitted to them. Isa. 6:9, 10
Perhaps the house of Judah will hear all the evil which I plan to do to them, that they may each man turn from his evil way, and I will forgive their iniquity and their sin.
Son of man, you dwell in the midst of a rebellious house. They have eyes to see, but they do not see; ears are to them to hear, but they do not hear; for they are a rebellious house.
And He said, To you it has been given to know the mysteries of the kingdom of God, but to the rest in parables, that seeing they might not see, and hearing, they might not understand. Isa. 6:9
and having fallen away, it is impossible for them again to renew to repentance, crucifying again for themselves the Son of God, and holding Him up to public shame.