'Knew' in the Bible

And she knew not that I had given to her, The corn, and the new wine, and the oil. Yea, silver I did multiply to her, And the gold they prepared for Baal.

They have set up kings, but not by me: they have made princes, and I knew it not: of their silver and their gold have they made them idols, that they may be cut off.

I taught Ephraim also to go, taking them by their arms; but they knew not that I healed them.

I knew you in the wilderness,in the land of drought.