Why should we sing? What should we sing? How should we sing? Singing has always been important to God's people, particularly in Wales. In these previously unpublished sermons from Ephesians 5:18-20 Lloyd-Jones deals with how believers should express their Spirit-filled lives in the Church and in their daily living. In these four sermons the author defines psalms, hymns and spiritual songs and addresses the subject of psalm singing. He discusses the place of melody in worship and emphasises that there is a difference between singing heartily and singing from the heart. He points out that we are to 'sing "to the Lord' and that the Lord Jesus Christ in all the glory of his person and work is the one who deserves all our praise. The final sermon is a reminder that the Christian is always, and in every area of life, to sing to the Lord for he is good and his mercy endures for ever.