Which extra-biblical evidence did Dr. Wise reference in relation to the Book of Revelation?

The correct answer pertains to water sources in Laodicea, which Dr. Wise referenced to provide extra-biblical evidence related to the Book of Revelation. Laodicea, a city mentioned in Revelation 3:14-22, was known for its unique geographical and hydrological features. It was located between two other cities, Hierapolis and Colossae, which were famous for their hot springs and cold springs, respectively. The significance of Laodicea’s water supply, which was tepid and often contaminated due to its distance from fresh sources, is highlighted in the biblical context as a metaphor for the spiritual state of the church there. This connection between the city's physical characteristics and the narrative in Revelation underscores the importance of understanding the historical and geographical context of biblical texts.

The other choices, while they may have historical or archeological significance in their own right, do not directly link to the specific references made by Dr. Wise concerning the Book of Revelation. Historical texts from Rome, archaeological findings in Jerusalem, and ancient scrolls from Egypt do not address the critical details about the city of Laodicea that enhance the understanding of the scriptural passage in the context of extra-biblical evidence.