In the 5th century 43 mosaics were installed along the right and left walls of the nave of the basilica. Most have survived, albeit with occasional restorations. A few have been entirely replaced. All but the first of the 22 scenes on the right follow a chronological order, from Moses to Rehoboam, but several of the 21 on the left violate chronological order. Scholars have proposed various thematic relationships that might account for this ordering.
|Mosaics on the Left (counting back from the chancel):||Mosaics on the Right (counting back from the chancel):|