The Battle Against the Amalekites
5th century, with medieval and modern restorations
Nave, Basilica of Santa Maria Maggiore, Rome
In the foreground the Israelites defend themselves against the forces of Amalek. As long as Moses (above, center) holds up his arms the Israelites prevail against the Amalekite army. He is flanked by Aaron and Hur, who help him keep his hands up. See Exodus 17:8-13.
This is part of the extensive series of Old Testament scenes portrayed in mosaics along the two walls of the nave. Follow this link for links to the others.
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Read more about Moses.
Photographed at the basilica by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.