בְּגִבְע֗וֹן נִרְאָ֧ה יְהֹוָ֛ה אֶל־שְׁלֹמֹ֖ה בַּחֲל֣וֹם הַלָּ֑יְלָה וַיֹּ֣אמֶר אֱלֹהִ֔ים שְׁאַ֖ל מָ֥ה אֶתֶּן־לָֽךְ׃
In Gibeon the LORD appeared to Solomon in a dream by night; and God said: ‘Ask what I shall give thee.’
Read Kabbalistic (mystical) interpretations of I Kings 3:5: Zohar and classical Jewish mystical sources, free online.