Many variations of "believers" claim that they pray to receive guidance of "what to do" and that only through a god's words will they have any sense of goodness and ethics. So I Googled "god orders killings" just to see what would fall out. See for yourself:

https://www.google.com/search?q=god+orders+killings&ie=utf-8&oe=utf-8

From that listing I randomly chose one ... EvilBible.com ... as seen here:

http://www.evilbible.com/

What I gather from this exercise is that believers are highly selective in what they include and exclude regarding any god's messages. The "received message" seems more likely to be a self-created belief within the person than it is from any outside source. It is no surprise that 100 believers have 100 (or more) personal interpretations of "exactly what god wants/means". It seems extremely arrogant that any one person would even claim that a god is giving him/her a truth which differs from what that same god tells other people. Something is fishy about this.