'Know' in the Bible

When he inadvertently touches the uncleanness of a human being, whatever his uncleanness that made him unclean may be, when he himself comes to know about it, he will be guilty.

Or if a person swears thoughtlessly with his lips to do evil or to do good, in whatever matter a man may speak thoughtlessly with an oath, and it is hidden from him, and then he comes to know it, he will be guilty in one of these.

"If a person sins and does what the LORD commanded is not to be done, and if he didn't know that he had sinned, then he will be guilty nevertheless.

He is then to bring to the priest a ram without defect from the flock, according to your valuation, for a guilt offering. So the priest shall make atonement for him concerning his error in which he sinned unintentionally and did not know it, and it will be forgiven him.

That your generations may know that I made the children of Israel to dwell in booths, when I brought them out of the land of Egypt: I am the LORD your God.