'Hidden' in the Bible

"If the whole congregation of Israel goes astray, and if the sin is hidden from the eyes of the assembly, and if they go astray from one of the LORD's commands that should not be violated, then they will stand guilty.

Or if a soul touch any unclean thing, whether it be a carcase of an unclean beast, or a carcase of unclean cattle, or the carcase of unclean creeping things, and if it be hidden from him; he also shall be unclean, and guilty.

'Or when he cometh against uncleanness of man, even any of his uncleanness whereby he is unclean, and it hath been hidden from him, and he hath known, and hath been 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.