Garments are various articles of clothing used to dress the body. They may be worn for utilitarian or religious purposes or both. The Lord made ‘coats of skins’ for Adam and Eve to cover their nakedness. (Gen. 3:21.) Special ceremonial and ‘holy garments’ were worn by Aaron and the priests. (Ex. 28; Lev. 16; Ezek. 42:14.) Garments worn by angels are ‘pure and white above all other whiteness.’ (D. & C. 20:6.) …Much that is sacred and symbolical is taught by reference to garments… .
Clean garments are a sign of cleanliness, perfection, and salvation. To gain salvation men must wash their garments in the blood of the Lamb. (1 Ne. 12:10; Alma 5:21–27; 7:25; 13:11–12; 3 Ne. 27:19; Rev. 6:11; 7:9–17.)
(Bruce R. McConkie, Mormon Doctrine, pp. 303–4)
