Presbytery Mosaic: Abel and the Lamb
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Presbytery Mosaic: Abel and the Lamb

The right wall of the presbytery has a 7th-century mosaic of three Old Testament figures who made sacrifices to God: Abel with his perfect lamb, Melchizedek at a table with his bread, and Abraham with his son Isaac. The theme of sacrifice is related to the Eucharist, which was performed at the high altar beneath the mosaic.