'Knowledge' in the Bible

Is it not clear to you that Abner, the son of Ner, came with deceit to get knowledge of your going out and your coming in and of all you are doing?

And when Joab had come out from David, he sent men after Abner, and they overtook him at the water-spring of Sirah, and made him come back with them: but David had no knowledge of it.

What more may David say to you? for you have knowledge of your servant, O Lord God.

And David sent to get knowledge who the woman was. And one said, Is this not Bath-sheba, the daughter of Eliam and wife of Uriah the Hittite?

This he did, hoping that the face of this business might be changed: and my lord is wise, with the wisdom of the angel of God, having knowledge of everything on earth.

Hushai said further, You have knowledge of your father and his men, that they are men of war, and that their feelings are bitter, like those of a bear in the field whose young ones have been taken from her: and your father is a man of war, and will not take his night's rest with the people;

And a woman put a cover over the hole, and put crushed grain on top of it, and no one had any knowledge of it.

And the king said, Is it well with the young man Absalom? And Ahimaaz said in answer, When Joab sent me, your servant, I saw a great outcry going on, but I had no knowledge of what it was.

You have made me free from the fightings of my people; you have made me the head of the nations: a people of whom I had no knowledge will be my servants.