"If it were known"

1. Alma 1: 17, 33
     17 Nevertheless, they durst not lie, if it were known, for fear of the law, for liars were punished; therefore they pretended to preach according to their belief; and now the law could have no power on any man for his belief.
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     33 And it came to pass that by thus exercising the law upon them, every man suffering according to that which he had done, they became more still, and durst not commit any wickedness if it were known; therefore, there was much peace among the people of Nephi until the fifth year of the reign of the judges.