וְדָוִ֛ד מְכַרְכֵּ֥ר בְּכָל־עֹ֖ז לִפְנֵ֣י יְהוָ֑ה וְדָוִ֕ד חָג֖וּר אֵפ֥וֹד בָּֽד׃
And David danced before the LORD with all his might; and David was girded with a linen ephod.
Read midrashic interpretation of II Samuel 6:14: and classical rabbinic exegesis.