Leonard Ravenhill emphasizes the significance of the marriage supper of the Lamb as described in Revelation 19:9, highlighting the joy and glory of being called to this divine celebration. He contrasts the eternal joy of the faithful with the impending judgment on worldly systems, urging believers to recognize their identity as part of God's eternal kingdom. Ravenhill reflects on the majesty of Christ, the King of Kings, and the profound implications of being part of His bride, encouraging the congregation to live in anticipation of this glorious event.