| Term | Definition |
| Bishop | A person who supervises a number of local churches. A member of the highest order of the ministry. |
| Archbishop | A bishop of the highest rank, heading an archdiocese or province. |
| Dogma | A doctrine taught by the church. A system of principles of the church. |
| Heresy | opinion or doctrine at variance with the orthodox or accepted doctrine, esp. of a church or religious system. |
| Trinity | The Father, Son and Holy Spirit, a threefold personality as one Divine being. |
| Augustine of Hippo | One of the great Fathers of the early Christian church, St. Augustine emphasized man’s need for grace. |