Notwithstanding, we should notice on the top, the Transfiguration of the Lord as it occurred on the Tabor mountain, and which is sculpted with the most marvellous skill
The iconographic programme of the three great portal reliefs at Compostela were intended as a combined expression of the full significance of the Apostolic shrine situated on the edge of the world.
The reason for this was engraved above the western entrance in a massive sculpted relief of the Transfiguration on Mount Tabor. The Jacobus describes the emplacement there of the large scale depiction of the theophanic vision described in the gospels of Matthew, Mark and Luke.
According to the early Church Father John Chrysostom, the three disciples present at the Transfiguration, Peter, John and James were chosen because they were superior to the others. James, specifically because he had accepted the challenge of martyrdom.
The Expulsion from Paradise of the north transept portal and the scenes of Christ’s Temptation and Passion over the Puerta de las Platerias would be completed by the great scene of the Transfiguration above the western entrance, covering the whole of Christian eschatological history.
The Transfiguration, rather than being simply an episode from the life of Christ would be a theophanic vision which was a prefiguration and typological equivalent of the Apocalypse, in keeping with its siting at the western end of the cathedral.
In Romanesque symbolism it was the west that was associated with Death and Resurrection and the use of the Transfiguration in this setting would have been eminently significant, placing the Apostle, whose shrine was located there, at the epicentre of an Apocalyptic image.
The north and south transept portal reliefs were preludes to the ultimate meaning of the shrine at Compostela: the presence of the relics of a saint whose intercessory power was second to none in its potential to restore man from the fatal consequences of the Fall.
The fifth book of the Jacobus, the Pilgrim’s Guide, gives us an extensive description of the cathedral at Compostela at the time of its composition. The author confirms that on the western façade, “We should notice on the top, the Transfiguration of the Lord as it occurred on the Tabor Mountain, and which is sculpted in marvellous workmanship”.
In the last quarter of the twelfth century, however, the west entrance to the cathedral was completed with a different programme, the Portico de la Gloria.
It has been suggested that the west façade as described in the Guide was merely planned. This is an interpretation which is reinforced by the extremely scant description and absence of detail provided by the author concerning the front of the pilgrimage church.
Those completed reliefs intended for the Transfiguration were relocated to the south transept portal, even prior to the writing of the Guide. Most striking of these is a marble relief of Saint James and the surrounding inscription “Hic in monte Ihesum miratur glorificatum”, backs up the notion that it was intended for the western end programme.
Elsewhere on the frontispiece of the Platerias Portal and carved in the same marble and style as the relief of the apostle is an image of diminutive figure emerging from an enclosed space. Rather strikingly he bears a pair of horns on his head, leading to speculation that he was intended to represent some satanic or demonic force.
Moses was commonly depicted as horned, an attribute which arose from Jerome’s Vulgate version of the Bible, which had taken the Hebrew text to imply horns emanating from his head rather than rays of light.
Also in the same marble and sculptural style, another relief from the presumed Transfiguration scene is to be found on the Platerias frontispiece: Abraham rising from his tomb with the inscription “Transfiguratio Ihesu surgit Abraham de tumuli”.
From these remnants, it is evident that the proposed Transfiguration scene was to have been very different from the traditional iconography seen in the Byzantine mosaics at Ravenna and Sinai and other sites.
That formula had been used at La Charité-sur-Loire where Christ in a mandorla is flanked by Moses and Elias, The Law and the Prophets with the three apostles crouched at the sides.
The figure of James at the Puerta de las Platerias is upright with Gospel in hand, an image of the Evangeliser of Spain fulfilling his Apostolic Mission.
The presence of Abraham locates the Transfiguration among the whole body of Biblical theophanic visions, essentially treating them as one. Abraham’s vision on the plains of Mamre in Genesis is linked to Jesus in John’s gospel.
Furthermore, by presenting the image of Abraham’s resurrection, as well as Moses’, this Transfiguration scene has been relocated to the Second Coming.
As the liturgical sermon attributed to Pope Calixtus II in the Jacobus puts it of James’ vision, it was “The Resurrection that you saw symbolically on Mount Tabor”.
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