This is the offering whiche ye shall take of them, golde, and siluer, & brasse,
Referenced Verses
Deut 8:9 : 9 A lande wherin thou shalt eate bread without scarcenes, neither shalt thou lacke any thyng: a land whose stones are iron, and out of whose hylles thou shalt digge brasse.
Job 28:2 : 2 Where yron is digged out of the grounde, & stones resolued to metall.