C.H. Spurgeon emphasizes that joy is the essence of the Christian faith, where worship is not just a duty but a privilege filled with delight. He encourages believers to approach God with songs of joy, whether in communal worship or personal struggles, as Jesus has removed our burdens and replaced them with the call to rejoice. Spurgeon highlights that the redeemed should lead in praising the Lord, celebrating the freedom from sin and the joy of salvation.