First Temple Period tombs In 1968–71, Barkay and
David Ussishkin surveyed the
Silwan necropolis from the time of the
Judean Monarchy during the
Iron Age, containing 50 rock-cut tombs of
Judahite high government officials. Barkay also excavated the Iron Age tombs on the grounds of the
École Biblique in the early 1970s.
Priestly Blessing scrolls Barkay's most famous discoveries were two small silver scroll
amulets containing the
priestly benediction from the
Book of Numbers (), which he discovered in 1979 in a First Temple Period tomb at
Ketef Hinnom. These
amulets contain the oldest surviving biblically related inscription discovered to date, dating back to the seventh century BCE and are to date the only archaeological proof that passages from the
Hebrew Bible as we know them were in circulation during the
First Temple Period.
Temple Mount excavations In 2000, Barkay,
Eilat Mazar, and other prominent individuals in Israel founded the
Committee for the Prevention of Destruction of Antiquities on the Temple Mount in response to a protruding bulge discovered in 2000 in the
Temple Mount's southwest corner. In 2005, together with archaeologist
Zachi Zweig, Barkay established the
Temple Mount Sifting Project, a project funded by the
Ir David Foundation and dedicated to recovering archaeological artifacts from 400 truckloads of earth removed from the
Temple Mount by the
Waqf and Israeli Islamic movement during 1996–2001. The construction included the establishment of the underground El-Marwani Mosque at an ancient structure known since medieval times as Solomon's Stables, including the excavation of a huge pit as an entrance to the structure, and reducing the platform level at the area north to the entrance. One of the findings of this project is a 7th-century BCE
bulla (round clay seal affixed to documents), which became known as the "Bethlehem Seal". Dr. Barkay offered the first translation of the
Hebrew three-line inscription: "In the 7th year, Bethlehem, for the king". ==Media career==