Sober or Somber Worship?

“simultaneously, we are told to ‘rejoice with trembling’ (Psalm 2:11), and to ‘serve the Lord with gladness; Come before His presence with singing’ (Psalm 100:2). We are to ‘come before His presence with thanksgiving;… [and] shout joyfully to Him with psalms.’ (Psalm 95:2)” - Churches Without Chests