What do Christians mean by the word gospel?I’d like to let the Gospel of Mark answer this question, but to make sense of what he has to say, I need to offer a couple of preliminary tangents.Ancient Religion and DemonsFirst, a tangent on ancient religion and demons. We tend to think of ancient religion as silly superstition and consequently, we view the Bible’s talk of demons as part of that pathetic ignorance. At best, we think of demon stories as personifications of disease. At worst, we thin…