The All-Holy Trinity

• The Father
• The Son or Word
• The Holy Ghost

• General:
  • St. Vincent of Lérins: Commonitorium, 13;
  • Some early references: St. Theophilus of Antioch, Ad Autolyc. II, xiv;

• Re: Catholicity of the Church:
  • Abp. Nathaniel (Lvov): The Ever-Holy Trinity -- The Image of Catholicity. --- Orthodox Photos