Well in these days you really do have to indoctrinate them while they're young, don't you?
Any objective analysis of the Bible will reveal the Old Testament to be a violent expose of mass murder, persecution and genocide contained inside what consists of either generic, near-eastern fairytales and myths or propaganda pieces to justify Isrealite displacement and conquest of native peoples in the Levant.
The New Testament is a contradictory, historically inaccurate compilation, written mostly by a bunch of deluded cultists from Judea. The only difference between Jesus and other contemporary magicians and cultists is that he has an awesome PR office that went into full swing after he died. Historically, they were very likely not written by the people that they are attributed to beyond a couple of the New Testament canonical texts. In terms of content, Jesus says very little that is original as the ideas of reciprocity and such are all in one's best interest anyway as evolutionarily beneficial traits that people had clued into quite a long time before. It doesn't disappoint, however, with its own fairytales about the end of the world and God's slaughter of a quarter of the world's population and others that didn't bow down to him despite his complete reliance on blind faith as he refuses to give any evidence whatsoever about his existence.
There is no intellectually defensible position that would have the Bible taught with reverence and respect in schools. Were it subject to the rudimentary ideas of textual criticism and source analysis that one is familiar with by year 9 or 10 history class, it would be found to be severely lacking. From an ethical point, I don't exactly believe that slaughter of homosexuals, prisoners of war, those that don't believe in your point of view despite the fact that you refuse to provide evidence to support your claims and other such ideas are things that children need to be familiarised with in schools of a secular society.