A team of Israeli researchers has discovered a small piece of red-dyed fabric in a Judean Desert cave, offering unprecedented insights into ancient textile production and biblical references to scarlet dye. The 3,800-year-old textile, measuring less than two centimeters (0.8 inches), was found to be colored using dye extracted from oak scale insects, which experts believe corresponds to the "scarlet worm" mentioned in the Bible.
The groundbreaking discovery was made during excavations in the Cave of Skulls as part of a broader initiative to protect heritage finds in the Judean Desert from antiquities theft. The research team, comprising experts from the Israel Antiquities Authority, Bar-Ilan University, and the Hebrew University of Jerusalem, published their findings in the Journal of Archaeological Science: Reports.
Naama Sukenik, curator of the Organic Material Collection at the Israel Antiquities Authority, explained the significance of the find, "In ancient times, the dye was produced from the female scale insect, which lives on the kermes oak tree. Collecting these kermes was done in a very short window of time – one month out of the year, in the summer, after the female laid her eggs but before they hatched – when the amount of dye was greatest."
The rarity and difficulty of harvesting these insects contributed to the prestige associated with the scarlet color they produced. The biblical term "scarlet worm" appears 25 times in scripture, often alongside other highly prized colors like blue (tekhelet) and purple (argaman).
Professor Zohar Amar of Bar-Ilan University noted the advanced zoological knowledge demonstrated in ancient texts, "The biblical association of this color with a living creature demonstrates impressive zoological knowledge, considering that female scale insects lack legs and wings, to the extent that some Greek and Roman naturalists even mistook them for plant granules."
Using advanced analytical techniques, including High-Performance Liquid Chromatography (HPLC), the researchers identified the specific species of scale insect used to create the dye. Sukenik stated, "We can determine with high probability that in ancient times, the textile was dyed using a species of Kermes vermilio, which produces kermesic acid, imparting the distinctive red hue."
Interestingly, the Kermes vermilio species is not native to Israel but is common in other Mediterranean regions. This suggests the existence of extensive trade networks during the Middle Bronze Age, as noted by Uri Davidovich from the Hebrew University of Jerusalem, "Although it is difficult to know how this textile arrived in this desert cave, it is significant evidence of ancient knowledge in dyeing wool fibers using scale insects to achieve the red color as early as the Middle Bronze Age – about 3,800 years ago."
The discovery provides tangible evidence of a sophisticated textile industry in the ancient world, bridging the gap between written sources and archaeological findings. Sukenik added, "The rare textile is a testament to broad international commercial networks functioning already at this time and indicates the presence of an elite society."
