'Knowledge' in the Bible

Jesus therefore, while teaching in the Temple, cried aloud, and said, "Yes, you know me, and you know where I am from. And yet I have not come of my own accord; but there is One who has sent me, an Authority indeed, of whom you have no knowledge.

You do not know Him, but I know Him perfectly; and were I to deny my knowledge of Him, I should resemble you, and be a liar. On the contrary I do know Him, and I obey His commands.

Now we know that you have all knowledge, and do not need to be pressed with questions. Through this we believe that you came from God."