On each side of the central panel the just judges, the soldiers of Christ, the hermits, and the pilgrims, advance to join the throng around the Lamb.

Most beautiful of all is the crowd of virgin martyrs bearing palms, moving over the green grass carpeted with flowers, to adore the Lamb of God, the Redeemer of the World.

Above, God the Father, the Virgin Mother, and St.John the Baptist, with crowns of wonderful workmanship, are throned amid choirs of singing and playing angels on either hand.
The picture does not illustrate the description of the Adoration of the Lamb in the fifth chapter of Revelations so faithfully as the picture of the 'Three Maries' illustrated St.Matthew.The Lamb has not seven horns and seven eyes, and the four beasts and twenty-four elders are not falling down before it and adoring.

The Lamb is an ordinary sheep, and the picture is a symbolic expression of the Catholic faith, founded upon a biblical text, but not what could be described as 'a Bible illustration.' People in the Middle Ages liked to embody their faith in a visible form, and we are told that theologians frequently drew up schemes of doctrine which painters did their best to translate into pictures, and sculptors into sculpture.
Such works of art were for instruction rather than beauty, though some also served well the purpose of decoration.
Josse Vyt, who ordered the picture, and whose portrait, with that of his wife, is painted on the shutters, no doubt explained exactly what he wanted, and Hubert sought to please him.[1] But although the design of the central panel was old-fashioned and symbolic, Hubert was able to do what he liked with the landscape, and with the individual figures.
They are real men and women with varieties of expression such as had not been painted before, and the landscape is even more beautiful than the one at the back of the 'Three Maries.' Snow mountains rise in the distance, and beautiful cypresses and palms of all kinds clothe the green slopes behind the Lamb.

There are flowers in the grass and jewels for pebbles in the brook.