Wilson's Dictionary of Bible Types
Exodus 36:24 (c) This precious metal is often used as a type of redemption. In this passage it refers probably to redemption as the foundation of the sinner's safety and his standing. The boards represent the Christians, while the silver sockets represent redemption. In the sandy desert, as well as in this wicked world, the sinner needs a sure foundation, a safe resting place. These sockets perhaps weighed one hundred pounds each. The board therefore rested on a solid foundation in the sand. So we "stand on redemption ground." We do not read of silver being in Heaven. No one in Heaven needs to be redeemed. (See also Exodus 30:15, and other places).
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Watson, Walter. Entry for 'Silver'. Wilson's Dictoinary of Bible Types. https://www.studylight.org/dictionaries/eng/wdt/s/silver.html. 1957.