'Do You Not Know' in the Bible

Joseph said to them, “What is this deed that you have done? Do you not know that such a man as I can indeed practice divination?”

Then 3,000 men of Judah went down to the cleft of the rock of Etam and said to Samson, “Do you not know that the Philistines are rulers over us? What then is this that you have done to us?” And he said to them, “As they did to me, so I have done to them.”

Then Abner called to Joab and said, “Shall the sword devour forever? Do you not know that it will be bitter in the end? How long will you refrain from telling the people to turn back from following their brothers?”

Then the king said to his servants, “Do you not know that a prince and a great man has fallen this day in Israel?

Do you not know that the Lord God of Israel gave the rule over Israel forever to David and his sons by a covenant of salt?

Do you not know what I and my fathers have done to all the peoples of the lands? Were the gods of the nations of the lands able at all to deliver their land from my hand?

Do you not know? Have you not heard?Has it not been declared to you from the beginning?Have you not understood from the foundations of the earth?

Do you not know? Have you not heard?The Everlasting God, the Lord, the Creator of the ends of the earthDoes not become weary or tired.His understanding is inscrutable.

“Say now to the rebellious house, ‘Do you not know what these things mean?’ Say, ‘Behold, the king of Babylon came to Jerusalem, took its king and princes and brought them to him in Babylon.

So the angel who was speaking with me answered and said to me, “Do you not know what these are?” And I said, “No, my lord.”

So he answered me, saying, “Do you not know what these are?” And I said, “No, my lord.”