I'll try # 3:Many religions claim that in order for you to ascend to heaven or whatever sacred paradise beyond the living world, you must believe and follow the word of god/allah/zeus/etc...
I just have a few questions.
3.) Why is it imperative that we believe what god and his holy scriptures say? Why can't we just live a good life, live a moral life? Why won't god accept us if we're athiests yet we didn't kill, steal, rape, etc...?
Gods commandments are address to God and our fellowmen and we must strive to accomplish both what you cited is just in relation to your fellowmen and your reward is what they give you; respect admiration and even idealization although you avoided the coveting, adultery and fornication part. you may receive reward for what you have done, mind you that If you transgress these one and get cought you wont even have a reward from your fellowmen.
What you ask is Why won't god accept us if we're atheists the answer to that is that you want the reward for the good things that youve done for other people, If you are an atheist you dont believe that there is God and that he promises entrance to His kingdom, to be accepted into Gods Kingdom you must love Him above all things and to love your fellowmen as you love yourself.