I Kings 7:10 Midrash

וּמְיֻסָּ֕ד אֲבָנִ֥ים יְקָר֖וֹת אֲבָנִ֣ים גְּדֹל֑וֹת אַבְנֵי֙ עֶ֣שֶׂר אַמּ֔וֹת וְאַבְנֵ֖י שְׁמֹנֶ֥ה אַמּֽוֹת׃

And the foundation was of costly stones, even great stones, stones of ten cubits, and stones of eight cubits.

Read midrashic interpretation of I Kings 7:10: and classical rabbinic exegesis.