On this mountain the LORD of hosts will make for all peoples a feast of rich food, a feast of well-aged wine, of rich food full of marrow, of aged wine well refined. (Isaiah 25:6)
God, in the verse before us, has been pleased to describe the provisions of the gospel of Jesus Christ. Although many other interpretations have been suggested for this verse, they are all flat and stale, and utterly unworthy of such expressions as those before us. When we behold the person of our Lord Jesus Christ, whose flesh is meat indeed, and whose blood is drink indeed–when we see him offered up upon the chosen mountain, we then discover a fulness of meaning in these gracious words of sacred hospitality, “The Lord shall make a feast of fat things, of fat things full of marrow.” Our Lord himself was very fond of describing his gospel under the selfsame image as that which is here employed. He spoke of the marriage-supper of the king, who said “My oxen and my fatlings are killed, and all things are ready;” and it did not seem as if he could even complete the beauty of the parable of the prodigal son without the killing of the fat calf and the feasting and the music and dancing. As a festival on earth is looked forward to and looked back upon as an oasis amid a desert of time, so the gospel of Jesus Christ is to the soul its sweet release from bondage and distress, its mirth and joy.
Charles Spurgeon, “Good cheer for Christmas,” The Sermons of Charles Spurgeon, Sermons 401-600 (Vol 3)