וְדָוִ֛ד מְכַרְכֵּ֥ר בְּכָל־עֹ֖ז לִפְנֵ֣י יְהוָ֑ה וְדָוִ֕ד חָג֖וּר אֵפ֥וֹד בָּֽד׃
И Давид танцевал перед Господом изо всех сил; и Давид был окружен льняным эфодом.
Radak
"And David danced before HaShem with all his might" - Danced with all his strength and concentration. And its targum is "praised."
Malbim
AND DAVID sacrificed his own honor for the honor of Hashem in three ways:
Rashi
Linen robe. A linen robe, Foursaint in O.F. Yonasan translated, robe as Yonasan also translated "the robes of Tomor, the sister of Avsholom," robes (Further, 13:18)