Perhaps the things here particularized, beside their first use, had a spiritual allusion. See Revelation 3:18.
Related Commentaries of Exodus 25:3
Exodus 25:3-7
3 And this is the offeringa which ye shall take of them; gold, and silver, and brass,
4 And blue, and purple, and scarlet, and fine linen, and goats' hair,
5 And rams' skins dyed red, and badgers' skins, and shittim wood,
6 Oil for the light, spices for anointing oil, and for sweet incense,
7 Onyx stones, and stones to be set in the ephod, and in the breastplate.