However, that statements poses a problem - what is it that you shouldn't kill?
"Thou shalt not kill" is an ambiguous statement and doesn't specify what it is you shouldn't kill. And because of it's ambiguity, you're left to interpret it as meaning that you shouldn't kill - period.
But, we kill all the time, sometimes without being aware of it. Whether it's crushing ants while walking to school, or ejaculating into a toilet, you are more or less, killing, are you not?
However, there is another variation of that statement which makes it less ambiguous and that is, "Thou shalt not murder". Unfortunately, while this statement is less ambiguous as the first, there's still a number of issues, such as where does killing end and murdering begin?
What is "Love thy enemy"? "Love" is brought into existence by self. "Thy" is self. "Enemy" is that which stands in opposition of self. However, if there is no self then there is no there is no love to be brought into existence. If there is no self, thus no love, then there is no enemy to stand in opposition. Thus, there is emptiness.
Why "love thy enemy" when it would be better not to give them something to stand in opposition to? Rather than trying to get the last word, how about just walking away? Rather than insulting someone behind their back, how about not saying anything about them at all?
Treat people the way you would like to be treated.
What if by treating someone kindly, they in return they treat you badly? Or what if by treating someone badly, they treat you kindly? Or better yet, what if you wanted to be treated kindly, but treat someone badly who in return treats you kindly? Likewise, what if you wanted to be treated badly, but treat someone kindly who in return treats you badly? Further, what if you wanted to be treated kindly, but treat someone badly who in return treats you badly? Or if you wanted to be treated badly, but treat someone kindly who in return treats you kindly? What if you wanted to be treated either kindly or badly and treat someone accordingly, but in return don't treat you either kindly or badly? What if you wanted to be treated either kindly or badly and treat someone accordingly, but in return treat you the opposite of the way you wish to be treated, which causes you to start treating them as they're treating you?
Not to mention, by treating someone the way you wish to be treated and expecting to be treated the same in return is rather selfish, don't you think? It gives the notion that you're doing it just so you can be treated the way you want to be treated.
But that begs the question, would it be better to treat others as they wish to be treated, rather than to treat them as you wish to be treated?
Thus, the problem of literal interpretation - ambiguity.