'Knew' in the Bible

Before I formed thee in the belly I knew thee; and before thou camest forth out of the womb I sanctified thee, and I ordained thee a prophet unto the nations.

The priests said not, Where is the LORD? and they that handle the law knew me not: the pastors also transgressed against me, and the prophets prophesied by Baal, and walked after things that do not profit.

But I was like a lamb or an ox that is brought to the slaughter; and I knew not that they had devised devices against me, saying, Let us destroy the tree with the fruit thereof, and let us cut him off from the land of the living, that his name may be no more remembered.

So Hanameel mine uncle's son came to me in the court of the prison according to the word of the LORD, and said unto me, Buy my field, I pray thee, that is in Anathoth, which is in the country of Benjamin: for the right of inheritance is thine, and the redemption is thine; buy it for thyself. Then I knew that this was the word of the LORD.

And it came to pass the second day after he had slain Gedaliah, and no man knew it,

Because of their wickedness which they have committed to provoke me to anger, in that they went to burn incense, and to serve other gods, whom they knew not, neither they, ye, nor your fathers.

Then all the men which knew that their wives had burned incense unto other gods, and all the women that stood by, a great multitude, even all the people that dwelt in the land of Egypt, in Pathros, answered Jeremiah, saying,