'Knew' in the Bible

Then I will declare to them, 'I never knew you. Go away from me, you lawbreakers!'

And they knew nothing until the flood came and took them all away. It will be the same at the coming of the Son of Man.

Then the one who had received the one talent came and said, 'Sir, I knew that you were a hard man, harvesting where you did not sow, and gathering where you did not scatter seed,

But his master answered, 'Evil and lazy slave! So you knew that I harvest where I didn't sow and gather where I didn't scatter?

(For he knew that they had handed him over because of envy.)