The following is an excerpt of article DB109 from the Christian Research Journal. The full PDF is available by following the link below the excerpt.
Attempts to reconstruct the beliefs and practices of Mithraism face enormous challenges because of the scanty information that has survived Proponents of the cult explained the world in terms of two ultimate and opposing principles, one good (depicted as light) and the other evil (darkness). Human beings must choose which side they will fight for; they are trapped in the conflict between light and darkness. Mithra came to be regarded as the most powerful mediator who could help humans ward off attacks from demonic forces.8
Mithraism- Influence on the New Testament?
The major reason why no Mithraic influence on first-century Christianity is possible is the timing: it’s all wrong! The flowering of Mithraism occurred after the close of the New Testament canon, much too late for it to have influenced anything that appears in the New Testament.9 Moreover, no monuments for the cult can be dated earlier than A.D. 90-100, and even this dating requires us to make some exceedingly generous assumptions. Chronological difficulties, then, make the possibility of a Mithraic influence on early Christianity extremely improbable. Certainly, there remains no credible evidence for such an influence.