Columbia subject headings:
Church history.
Jewish Christians--History--Early church, ca. 30-600.
Judaism--History.
Religions--History.
Zoroastrianism--History.
Harvard subject headings:
Church history.
Jewish Christians
Jewish Christians--History--Early church, ca. 30-600
Judaism--History
Religion
Religions--History
Zoroastrianism--History
Princeton subject headings:
Jewish Christians.
Religion.