'Knew' in the Bible

Thou hast delivered me from the strivings of the people; thou hast made me the head of the nations: a people I knew not doth serve me.

But at my halting they rejoiced, and gathered together: the slanderers gathered themselves together against me, and I knew it not; they did tear me, and ceased not:

Then I was brutish and knew nothing; I was as a beast with thee.

He ordained it in Joseph for a testimony, when he went forth over the land of Egypt, where I heard a language that I knew not.