Not merely bias. Limited vocabulary and understanding of physics, biology, chemistry, etc... God might indeed be an infinitely perfect and potent being, but even He cannot explain quantum mechanics to a person with a five-year-old's vocabulary and a completely parochial worldview. Such a person lacks the terms with which to define and correlate the concepts. All he can say is "God's mysterious" or "Oo-oooo! Maaaaaaagic!"
I've never found that a convincing reason why scripture is so sketchy regarding science. Even we, limited as we are, can take a totally ignorant 6-year-old and in a mere 10 years that child is ready to do college-level science work. If the kid is bright and the teachers are good, it can be done in less than 10 years. And if we can do it, there's no reason why God couldn't have done it -- if that was the intent. So it's very clear to me (in my always humble opinion) that scripture was never intended to be a science text, and it's a mistake to read it that way. There are many things which have been left for us to figure out, and we're doing rather well.