Amongst the Messianic Metals, Silver, like Christ was the intermediary between G3D and Earth, symbolized by the silver base plates that supported the gold covered tension structural beams that supported the Tabernacle’s fabric covering. 

These silver foundations were cast from the half silver shekel tax levied against all Israelite men as a ransom for their souls, and a silver basin carried the blood of the sacrificial Passover lamb to atone for their sins each year.

Silver was a symbol of Redemption, thirty pieces of silver was the price to free a slave or atone for a sin, and the price that Christ was betrayed for.