The missions of the Apostles
- St. Andrew = Scythia (modern-day Iran and other parts of Eastern Europe)
- St. Bartholomew = various regions south of the Black Sea
- St. James the Elder = Spain
- St. James the Younger (Jesus’ brother) = Jerusalem
- St. John = Asia Minor (parts of Syria, Turkey)
- St. Jude Thaddeus (Jesus’ brother) = Syria, Parthia (Khorasan in Iran), Armenia
- St. Matthew = throughout the Middle East and Ethiopia
- St. Paul = Jerusalem, Illyricum (modern-day Albania, Slovenia, Croatia), Rome
- St. Peter = Pontus, Galatia, Bithynia, Cappadocia, Iraq
- St. Philip = Asia Minor (parts of Syria, Turkey)
- St. Simon the Zealot (also referred to as St. Shimon of Jesus and Mary) = Parthia, Jerusalem
- St. Thomas = Parthia (Khorasan in Iran), India