Engineers / Biblical tie-in

I've seen it suggested in several places that there's a significance to the fact that the Engineers were trying to get back to Earth 2,000 years ago to, presumably, wipe the planet of humans using the black goo. The implication, of course, would be that this has something to do with Jesus (2000 years would put the timeframe within 60 years of the Jesus mythology). One suggestion I heard was that Jesus was really an engineer and that the cruxifiction of Jesus pissed off the engineers. This doesn't make sense to me because there's never any mention, in the Bible, that Jesus is a 10' tall albino body builder. There is a story in the testament about David and Goliath, though, that would make more sense. Even this would be a stretch but if there was a biblical tie-in this one would make more sense to me. My take on it is that these engineers are terraformers and they were simply making life-supporting planets ready for habitation. I've only seen this movie one time but from what I recall, Earth was portrayed in the beginning as being very "young". The landscape looked devoid of even trees. So perhaps the black goo is a terraforming agent that accelerates life but animal life is an undesired consequence of this. Eventually, they come back to their projects and wipe away the animal life with this black goo. I don't know. Another thing that bothers me is that the gap in time between the ritual sacrifice at the beginning of Prometheus and the present day of the movie had to have been millions of years based on the fossil records on Earth. I'm assuming that the Engineers seeded all animal life on Earth and not just humans so that means dinosaurs and their extensive history needs to be explained. In any case, then the question becomes "Why wait until circa 100 AD to destroy life on Earth?". So then maybe instead of calling these guys terraformers we should call them Farmers and maybe the black goo is analogous to Round Up and they were just doing a little weeding.