S Agostino; Prophet Jesaja; Raffael

The prophet is shown as a powerful, muscular figure in blue and gold drapery, looking intently to his right. Above him, two winged infants hold a marble plaque with a Greek dedication and support a heavy garland of leaves. The work is a fresco characterized by its monumental scale and the clear influence of Michelangelo's Sistine Chapel ceiling.

This work represents the Renaissance synthesis of Judaeo-Christian prophecy and Classical aesthetics, reflecting the 'Prisca Theologia' (Ancient Theology) championed by Roman humanists like Egidio da Viterbo. The inclusion of Hebrew and Greek scripts alongside Christian iconography underscores the era's belief in a single, ancient wisdom tradition shared across civilizations.