וַיַּעֲמֹ֣ד הַ֠מֶּלֶךְ עַֽל־הָ֨עַמּ֜וּד וַיִּכְרֹ֥ת אֶֽת־הַבְּרִ֣ית ׀ לִפְנֵ֣י יְהוָ֗ה לָלֶ֜כֶת אַחַ֤ר יְהוָה֙ וְלִשְׁמֹ֨ר מִצְוֺתָ֜יו וְאֶת־עֵדְוֺתָ֤יו וְאֶת־חֻקֹּתָיו֙ בְּכָל־לֵ֣ב וּבְכָל־נֶ֔פֶשׁ לְהָקִ֗ים אֶת־דִּבְרֵי֙ הַבְּרִ֣ית הַזֹּ֔את הַכְּתֻבִ֖ים עַל־הַסֵּ֣פֶר הַזֶּ֑ה וַיַּעֲמֹ֥ד כָּל־הָעָ֖ם בַּבְּרִֽית׃
And the king stood on the platform, and made a covenant before the LORD, to walk after the LORD, and to keep His commandments, and His testimonies, and His statutes, with all his heart, and all his soul, to confirm the words of this covenant that were written in this book; and all the people stood to the covenant.
Read Kabbalistic (mystical) interpretations of II Kings 23:3: Zohar and classical Jewish mystical sources, free online.