וַיִּתֵּן֩ אֱלֹהִ֨ים חָכְמָ֧ה לִשְׁלֹמֹ֛ה וּתְבוּנָ֖ה הַרְבֵּ֣ה מְאֹ֑ד וְרֹ֣חַב לֵ֔ב כַּח֕וֹל אֲשֶׁ֖ר עַל־שְׂפַ֥ת הַיָּֽם׃
And God gave Solomon wisdom and understanding exceeding much, and largeness of heart, even as the sand that is on the sea-shore.
Read kabbalistic (mystical) interpretation of I Kings 5:9: and classical mystical sources.