"We can find value in many teachings it doesn't mean we have to accept it lock, stock and barrel."
That's true, of course, and it includes all 'teachings' from whatever source. That's an enlightened view - assess, evaluate, accept or discard. But it's not one which sits well with many in the religious world. If you teach that the bible (however defined) is divinely inspired and inerrant, and that your god is all-powerful and unchanging, you have to accept it all - and then try to explain away the unacceptable stuff.
Or, you 'cherry pick' - and once you start doing that your 'cherry picked bits' may, no will, differ from others and so you've started your own religion/sect/cult - which quite nicely illustrates that religion is a man-made thing built to suit your own circumstances, needs and aspirations.
An example which quickly comes to mind - isn't there a teaching in the NT which talks about giving away your worldly possessions, taking no thought for the morrow, etc? And yet Mormons (I think) and certainly some US fundy groups say that financial prosperity is a gift from their god and a reward for their faith. Choose your view and someone somewhere will provide a justification for it.