The stained glass windows that Fernand Léger designed for the Church of the Sacred Heart at Audincourt (completed 1951) represent the most successful integration of Cubist visual language into Christian liturgical architecture and stand as the crown achievement of the postwar Sacred Art movement that briefly transformed the relationship between avant-garde modernism and the Catholic Church in France.
The movement had a specific institutional locus: the Atelier d'Art Sacré, and more specifically the influence of the Dominican friar Marie-Alain Couturier, who argued with passionate conviction that great religious art could only be created by great artists - and that the great artists of the age were not the conventional religious painters but the modernists. Couturier commissioned Matisse for the Chapelle du Rosaire at Vence (1951), Léger for Audincourt (1951), Rouault for the stained glass at Assy, and Chagall for the Jerusalem Hadassah Hospital windows (1962). Each commission was a confrontation between the Catholic Church's institutional conservatism and its best artistic tradition.
Léger's windows at Audincourt treat the Instruments of the Passion - the cross, the crown of thorns, the nails, the lance, the sponge, the vinegar jug, the hammer, the dice - as the subject of eleven lancet windows arranged around the church. His approach translates these instruments into bold flat geometric forms in the primary colors that had characterized his Tubism from the 1910s: black outlines, areas of pure red, blue, yellow, and green. The crown of thorns becomes an interlocking circular construction; the cross a simple vertical-horizontal intersection given weight through surrounding color; the nails abstract linear elements given their identity only by context.
The theological effect of this formal approach is remarkable and somewhat unexpected. By making the Passion instruments into geometric icons rather than narrative scenes, Léger produces an experience of concentrated attention rather than narrative sequence. The viewer does not follow a story but dwells in the presence of the objects through which the central event of Christian theology occurred. The formal simplicity makes them strangely monumental - these humble, violent instruments are elevated by the visual authority of the composition to the status of icons.
The windows generated significant controversy when installed, as many Catholics felt that the radical modernist aesthetic was inappropriate for a house of worship. The debate about whether the Church should employ avant-garde artists for sacred commissions continued through the 1950s and was eventually settled, for the Catholic Church's official position, in a conservative direction with the Second Vatican Council's Constitution on the Sacred Liturgy (1963), which called for art that spoke clearly to the worshipping community. Léger's windows survived the controversy and have come to be recognized as among the masterworks of twentieth-century religious art.
For the history of biblical imagery in modern art, Audincourt represents a particular approach: not the narrative illustration of biblical scenes (Doré's approach) or the psychological realism of the Renaissance, but the iconic abstraction of essential theological objects. The Passion instruments rendered in Cubist primary colors ask the viewer to see afresh what familiarity has made invisible - to look again at the cross, the nails, the thorns as if for the first time.