וְעַ֨בְדְּךָ֔ בְּת֥וֹךְ עַמְּךָ֖ אֲשֶׁ֣ר בָּחָ֑רְתָּ עַם־רָ֕ב אֲשֶׁ֧ר לֹֽא־יִמָּנֶ֛ה וְלֹ֥א יִסָּפֵ֖ר מֵרֹֽב׃
And Thy servant is in the midst of Thy people which Thou hast chosen, a great people, that cannot be numbered nor counted for multitude.
Read Kabbalistic (mystical) interpretations of I Kings 3:8: Zohar and classical Jewish mystical sources, free online.