Behind-Glass Painting with Calligraphed Saying: The Blood of Jesus Christ the Son of God Purifies us from all Sin

Executed in vitreous enamel, the letters are painted onto glass and fired to fuse the pigment permanently. The calligraphy is dense and fluid, with looping, interwoven forms that fill the surface without repetition. Gold and metallic tones catch light, creating a luminous effect against the black background. The technique merges craft with devotional intent, emphasizing material permanence as a metaphor for divine truth.

The work was produced in the late 17th century, likely in a German-speaking region with strong Lutheran traditions. It entered the Rijksmuseum’s collection in the 19th century, where it remains as part of its holdings of devotional objects. The artist, Johann G. M., is otherwise undocumented, suggesting the piece may have been made by a skilled artisan rather than a named master.

In post-Reformation Germany, devotional objects often replaced traditional religious imagery with textual meditations. This piece reflects a broader trend of using calligraphy as sacred art, particularly in domestic or private worship settings. The use of glass and enamel, while uncommon, aligns with regional practices in decorative religious objects that valued durability and luminosity.

As a rare example of enamel calligraphy on glass from this period, it stands as a testament to the intersection of craftsmanship and theology in early modern Protestant devotion. Its preservation in a major museum underscores its significance as a material expression of faith, offering insight into how spiritual concepts were rendered tangible through non-figurative means.