'Understand' in the Bible

“An ox knows its owner,And a donkey its master’s manger,But Israel does not know,My people do not understand.”

He said, “Go, and tell this people:‘Keep on listening, but do not perceive;Keep on looking, but do not understand.’

“Render the hearts of this people insensitive,Their ears dull,And their eyes dim,Otherwise they might see with their eyes,Hear with their ears,Understand with their hearts,And return and be healed.”

Well then, where are your wise men?Please let them tell you,And let them understand what the Lord of hostsHas purposed against Egypt.

“As often as it passes through, it will seize you;For morning after morning it will pass through, anytime during the day or night,And it will be sheer terror to understand what it means.”

Then Eliakim and Shebna and Joah said to Rabshakeh, “Speak now to your servants in Aramaic, for we understand it; and do not speak with us in Judean in the hearing of the people who are on the wall.”

“You are My witnesses,” declares the Lord,“And My servant whom I have chosen,So that you may know and believe MeAnd understand that I am He.Before Me there was no God formed,And there will be none after Me.

They do not know, nor do they understand, for He has smeared over their eyes so that they cannot see and their hearts so that they cannot comprehend.

Thus He will sprinkle many nations,Kings will shut their mouths on account of Him;For what had not been told them they will see,And what they had not heard they will understand.