The altarpiece was opened on feast days when the richness, colour and complexity of the inner panels was intended to contrast with the relative austerity of the outer panels. As viewed when open, the panels are organised along two registers (levels), and contain depictions of hundreds of figures. These panels are flanked by two pairs of images on the folding wings. The two panels closest to the Deësis show singers in heaven; the outermost pair show Adam and Eve, naked save for strategically placed leaves. The lower register has a panoramic landscape stretching continuously across five panels. While the individual panels of the upper tier clearly contain separate—albeit paired—pictorial spaces, the lower tier is presented as a unified
Mise en scène. Of the 12 panels, eight have paintings on their reverse visible when the altarpiece is closed.
Upper register Deësis The three central upper panels show a
Deësis of monumental and enthroned figures, each with a halo. They are the Virgin Mary to the left,
John the Baptist to the right and a central figure who may be either God or Christ – a distinction much debated amongst art historians. Theories include that the panel shows
Christ in Majesty dressed in priestly vestments,
God the Father, or the
Holy Trinity amalgamated into a single person. The figure looks directly towards the viewer with his hand raised in blessing, in a panel filled with inscriptions and symbols. There are Greek inscriptions decorated with pearls on the hem of his
mantle (possibly a
cope, fastened by a bejewelled morse or clasp) which are from
Revelation: ("
King of Kings, and Lord of Lords"). An
openwork crown is at his feet, and on either side the step is lined with two levels of text. The left hand upper line reads ("Life without death on his head"), that on the right ("Youth without age on his forehead"). These are placed above—on the left and right respectively—the words ("Joy without sorrow on his right side") and ("Safety without fear on his left side"). On his head is another jewel-encrusted crown similar to the
papal tiara or
triregnum, with its white body, three tiers, green
lappets, and
monde with a cross on top. Mary reads from a
girdle book draped with a green cloth. A book is a normal
attribute for Mary, as one of her
titles is "
Seat of Wisdom" and this image might be based on the figure in
Robert Campin's
Virgin Annunciate. Like his aunt Mary, John the Baptist also holds a holy book – an unusual attribute; these are two of the 18 books in the entire piece.
Musical angels The two musical panels are commonly known by variants of the titles
Singing Angels and
Music-making Angels, and are both 161 cm × 69.3 cm. Each features a choir; on the left, angels gather behind a wooden carved music stand positioned on a swivel, and to the right, a group with stringed instruments gather around a pipe organ, played by a seated angel, shown full-length. The presence of the two groups on either side of the Deësis reflects a by-then well-established motif in representations of the heavens opening: that of musical accompaniment provided by celestial beings. As was common in the Low Countries in the 15th century, the angels are dressed in liturgical robes, a custom that migrated from Latin
liturgical drama to the art of the period. The angels attend the
King of Kings, that is, to God the Father in the central Deësis panel. Unusually, they lack most of the attributes usually associated with angels depicted in northern art of the time. They do not have wings, and their faces are unidealised, and show a number of different individual expressions. Music historian Stanley Boorman notes that their depiction contains many earthly qualities, writing that "the naturalism is so seductive that the viewer is tempted to consider the scenes as depictions of contemporary church music." Yet he concludes that the inscriptions "reinstalls them in the heavenly sphere". In both panels the angels stand on
maiolica tiles decorated with the
IHS Christogram, representations of the lamb and other images. Art historian Elisabeth Dhanens notes how "One can easily see by their singing who is the soprano, who is the alto, who is the tenor and who is the bass". The figures are positioned in a wave-like order of body height, with the orientation of each of the eight faces in looking in different directions. A number of scholars have remarked on their physiognomy. Their cherub faces and long, open, curly hair are similar but also show a clear intention by the artist to establish individual traits. Four angels are shown frowning, three have narrowed eyelids which give the appearance of peering, a trait also seen in some of the apostles in the "Adoration of the Lamb". Pächt does not see Jan's hand in the rendering of their expressions and speculates if they are remnants from Hubert's initial design. In the right-hand panel, the only angel fully visible is the organist around whom the others gather. Although a larger group is suggested, only another four angel's faces can be seen in the closely cropped huddle. These other angels carry stringed instruments, including a small
harp and a type of
viol. In French
illuminated manuscripts of the first two decades of the 15th century, winged angels often seemingly floated on the margins of the page, as illustrations to the accompanying text. and almost contemporary with the equally ground-breaking figures in
Masaccio's
Expulsion from the Garden of Eden (
Florence, c. 1425). They face inwards towards the angels and the Deësis, separating them. They self-consciously attempt to cover their nakedness with a leaf as in the
Genesis account (although apparently not a figleaf), indicating that they are depicted as after the
fall of man. Eve holds a fruit in her right hand.
Erwin Panofsky drew particular attention to this passage, describing it as emblematic of the "disguised" symbolism he saw through the work. Both figures' eyes are downcast and they appear to have forlorn expressions. Their apparent sadness has led many art historians to wonder about van Eyck's intention in this portrayal. Some have questioned if they are ashamed of their committal of original sin, or dismayed at the world they now look upon. Clark describes her as "a proof of how minutely 'realistic' a great artist may be in the rendering of details, and yet subordinate the whole to an ideal form. Hers is the supreme example of the bulb-like body. The weight-bearing leg is concealed, and the body is so contrived that on one side is the long curve of the stomach, on the other the downward sweep of the thigh, uninterrupted by any articulation of bone or muscle." The precision and detail with which their nakedness is rendered has historically been a source of offense. During a visit to the cathedral in 1781,
Emperor Joseph II found them so disagreeable that he demanded they be removed. The couple's nakedness further offended 19th century sensibilities, when their presence in a church came to be considered unacceptable. The panels were replaced by reproductions in which the figures were dressed in skin cloth; these are still on display in
Saint Bavo Cathedral. In comparison to contemporary depictions of Adam and Eve, this version is very spare and omits the usual motifs associated with the theme; there is no serpent, tree or any trace of the
Garden of Eden normally found in contemporary paintings. and contract to the fact that the polyptych was wider than the original setting and could never be opened fully. The grisaille above Adam shows
Abel sacrificing the first lamb of his flock, and his brother
Cain presenting crops to the Lord. Above Eve is a representation of
Abel being murdered by Cain with what appears to be an ass' jawbone. A series of crowds of people stream towards the lamb to worship; four groupings congregate at each corner of the central panel, another four arrive in the two pairs of outer panels – representing the Warriors of Christ and Just Judges on the left-hand side, and the holy hermits and pilgrims on the right. Of the eight groupings only one consists of females. The groupings are segregated by their relationship to the
old and
new testaments, with those from the older books positioned to the left of the altar. Among the pilgrims is
Saint Christopher, patron saint of travellers. At the rear of the hermits on the inner right-hand panel is
Mary Magdalene, carrying
unguents.
Adoration of the Mystic Lamb Measuring 134.3 × 237.5 cm, The lamb stands on an altar, and is surrounded by 14 angels arranged in a circle, A dove, representing the Holy Spirit, hovers low in the sky directly above the lamb, surrounded by concentric semicircles of white and yellow hues of varying luminosity, the outermost of which appear like
nimbus clouds. Thin golden beams emanating from the dove resemble those surrounding the head of the lamb, as well as those of the three figures in the
Deësis in the upper register. The rays seem to have been painted by van Eyck over the finished landscape and serve to illuminate the scene in a celestial, supernatural light. This is especially true with the light falling on the saints positioned directly in front of the altar. The light does not give reflection or throw shadow, and has traditionally been read by art historians as representing the
New Jerusalem of
Revelation which in 21:23, had "no need of the sun, neither of the moon, to shine in it; for the glory of God did Lighten it". The illumination contrasts with the natural and directional lighting of the four upper interior wings and of each of the outer wings. It has been interpreted as a device to emphasize the presence of the divine and accentuate the paradise of the central landscape. . Yet the panel does not strive for exact realism; the sum of the forensically detailed natural elements, in combination with the apparition of the Holy Spirit and extended beams of light, serve to create a wholly individual and uniquely creative interpretation of a classic biblical scene.
Prophets, Apostles, church figures The representations of figures gathering on each side of the fountain are drawn from biblical, pagan and contemporary ecclesiastical sources. Some are crowded around the fountain in what Pächt describes as two "processions of figures [that] have crowded to a halt". To the left are representatives of figures from Judaism and prophets who have foretold the coming of Christ; to the right are representatives from the Church. ,
Gregory VII and
Antipope Alexander V. A number are recognizable, including
Saint Stephen who carries the rocks with which he was stoned. Three popes in the foreground represent the
Western Schism—a dispute that festered and lingered in Ghent—and are identifiable as
Martin V,
Gregory VII and
Antipope Alexander V. Dhanens suggests the positioning of popes standing beside antipope shows "an atmosphere of reconciliation". The female martyrs, sometimes known as the holy virgins, are gathered by an abundant meadow, a symbol of fertility. A number are identified by their
attributes: in front
St. Agnes carries a lamb,
St. Barbara holds a tower, while
St. Dorothy carries flowers. Further back
St. Ursula carries an arrow.
Just Judges and the Knights of Christ The wing panels to the left of the "Adoration of the Mystic Lamb" show groups of approaching knights and judges. Their biblical source can be identified from inscriptions on the panel frames. The far left-hand panels contain lettering reading (
Righteous (or
Just)
Judges), the inside left panel reads (
Warriors of Christ). The
Just Judges may contain portraits of Jan and Hubert as the third and fourth Judges on horseback. The evidence is based on the similarity of one of the figures to Jan's 1433
Portrait of a Man, now in the
National Gallery, London, generally thought to be a self-portrait. The second, closer, figure is thought to be Hubert because of his facial similarity to Jan. Although the judge in the Ghent panel appears to be younger than the sitter in the London painting, they wear similar
chaperons with the
cornette tightly bound around the
bourrelet. The judges in the Ghent panel became the basis for a number of later portraits of the brothers, including that of
Dominicus Lampsonius.
Flora The Ghent altar shows depictions of herbs, shrubs, (mainly Mediterranean) trees, lichens, mosses and ferns, many of which are so lifelike that orange and pomegranate trees,
date palms and cypresses, rose bushes and vines as well as lilies, iris, peonies, lily of the valley, woodruff, daisies, can be identified. This has received scholarly attention for at least two centuries. In 1822
Johanna Schopenhauer identified many of the plants in the flora of the Ghent altar, including
medicinal plants A number of them have a connection to the Christian symbolism In 1984, the ecologist Sam Segal counted 81 different plants. In 1996, German biologist Esther Gallwitz published a plant guide to the flora of the Ghent altar, describing their symbolism and in 2018, the latest critical examination after restoration of the Ghent altar piece found 75 plants, 48 of which could be determined with certainty and 44 of which appear on the panel of the adoration of the lamb, according to the exhibition catalogue. ==Closed view==