where did you get that commandment? "THOUGH shall have no other God before me".its inaccurate. again, thou not though. lol
by having other gods man is inclined to sin... his first commandment which is "THOU shall not have other gods but me" is not a form of obsession but love;
i think if god would mention all the sins that must not be done by man, then, it would have consumed a lot of pages...the prohibition of raping somebody is just a part of the whole commandment ;)