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The Calling of the Apostles Peter and Andrew, by Duccio

At the outset of his public ministry, Jesus encounters Peter and Andrew, fishing on the Sea of Galilee. Jesus issues an urgent appeal: “Follow me, and I will make you fish for people” (Mark 1:16–18). Duccio (di Buoninsegna, ca. 1260–1319) captures this encounter in tempera for the two-sided Maestà altarpiece in the Cathedral at Siena, Italy (1308–1311). The style anticipates the Renaissance with an attempt at depth through modeling, contour, and compositional divisions. Christ stands on a rocky shore that is painted as a strong vertical on the left side of the picture.