Then David danced before the LORD with all his might; and David was wearing a linen ephod.
2 Samuel 6:14
Surrounding context
6:13 And so it was, when those bearing the ark of the LORD had gone six paces, that he sacrificed oxen and fatted sheep.
6:14 Then David danced before the LORD with all his might; and David was wearing a linen ephod.
6:15 So David and all the house of Israel brought up the ark of the LORD with shouting and with the sound of the trumpet.