וַיַּנַּ֤ח שְׁלֹמֹה֙ אֶת־כָּל־הַכֵּלִ֔ים מֵרֹ֖ב מְאֹ֣ד מְאֹ֑ד לֹ֥א נֶחְקַ֖ר מִשְׁקַ֥ל הַנְּחֹֽשֶׁת׃
And Solomon left all the vessels unweighed, because they were exceeding many; the weight of the brass could not be found out.
Read kabbalistic (mystical) interpretation of I Kings 7:47: and classical mystical sources.