This is an excellent article that draws attention to the messaging of modesty in the Book of Mormon.
…the references to clothing in the Book of Mormon are nearly always focused on the pride that goes hand in hand with “costly apparel.”
Jacob addressed the Nephites by saying, “Ye are lifted up in the pride of your hearts, and wear stiff necks and high heads because of the costliness of your apparel.” (Jacob 2:13)
Jacob was criticizing an unrighteous focus on outward appearances. In all our discussions about modesty, how often do we focus on the length of the skirt and not the unnecessary expense of the skirt? The tightness of the dress rather than the desire for attention and compliments the dress will receive? Do we think splurging on 10 “super cute” modest, designer one-piece swimsuits is different from buying one affordable bikini? (I am not advocating for bikinis, but I am trying to illustrate the principle that purchasing clothing in excess is not a modest way to live, just as an excessively short skirt is not modest.)
Read it all here…
Notice the messaging isn’t about showing knees, shoulders, or ankles. It is about pride, it is about the elevating status through clothing.