'Incurable' in the Bible

Why must I continually suffer such painful anguish? Why must I endure the sting of their insults like an incurable wound? Will you let me down when I need you like a brook one goes to for water, but that cannot be relied on?"

Moreover, the Lord says to the people of Zion, "Your injuries are incurable; your wounds are severe.

Why do you complain about your injuries, that your pain is incurable? I have done all this to you because your wickedness is so great and your sin is so much.