Antithetically, theology is considered subjective and irrational due to the authority it places in biblical scriptures. Theology is often associated with the moral behavior of humanity, but its impact on natural phenomena is ignored. This includes religious practices, principles, and worship activities. Both science and theology are essentially studying the same topic from extremely different perspectives. The model of addendum assumes that theology is supposed to play an auxiliary role to science.
Science is the primary causation of reality and theology is secondary.
This relationship does not threaten the credibility of science. The addendum model also allows science to displace theology whenever it arrives at a scientifically reasonable explanation. The next model is the similarity model. It states that theology and science only differ in degree. Both are supported by data, but scientific data is more precise than canonical text.