See Exodus 35:35 note.

Aholiab ... an engraver. —This is a mistranslation. Khârâsh means a worker in any material whatsoever. It should be rendered …

And with him was Aholiab, son of Ahisamach, of the tribe of Dan Of him see (Exodus 31:6)

The foundation of solid pieces of silver showed the solidity and purity of the truth upon which the church is founded.