“The [LDS temple tokens] are most sacred, and are guarded by solemn covenants and obligations of secrecy.”
Pre-1990 LDS temple ceremony text. The words “of secrecy” were removed in 1990, as well as several representations and references to “penalties.”
“And again I would further suggest the impropriety of the organization of bands or companies by covenant or oaths by penalties <or
Joseph Smith, Jr., Letter to Edward Partridge (Salt Lake City, UT: The Church of Jesus Christ of Latter-day Saints, 22 March 1839), 7.