Final answer:
The two conventions found in the Book of Revelation are Maiestas Domini (Christ in Majesty) and Heavenly Jerusalem.
Step-by-step explanation:
In the Book of Revelation, there are two major conventions represented:
- Maiestas Domini (Christ in Majesty): This convention depicts the end times as described in Revelation 4:2-7, with a giant figure of Christ surrounded by a halo.
- Heavenly Jerusalem: The book describes the gates of the heavenly Jerusalem in chapters 21 and 22, and how to reach salvation. The emeralds and rubies mentioned in relation to the gates have symbolic references to the heavenly Jerusalem.
These conventions serve to illustrate themes of divine power, judgment, and the path to salvation that are central to the Book of Revelation.