'Knew' in the Bible

For he hath made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him.

I knew a man in Christ above fourteen years ago, (whether in the body, I cannot tell; or whether out of the body, I cannot tell: God knoweth;) such an one caught up to the third heaven.

And I knew such a man, (whether in the body, or out of the body, I cannot tell: God knoweth;)