Columbia subject headings:
Bible. New Testament--Rites and ceremonies.
Liturgies, Early Christian.
Prayer--History.
Worship--History--Early church, ca. 30-600.
Harvard subject headings:
Bible. New Testament--Rites and ceremonies.
Liturgies, Early Christian.
Prayer--History
Public worship in the Bible.
Worship--Early church, ca. 30-600.
Worship--History--Early church, ca. 30-600
Princeton subject headings:
Bible. New Testament--Rites and ceremonies.
Liturgies, Early Christian.
Prayer--History.
Worship--Early church, ca. 30-600.