if Christians committ attrocities they aren't doing God's will.
I do not disagree with this statement. What you want to know is How we know which interpretation is the correct one.
There are some very good laws in the Bible that cannot be misinterpretted. There are also some ambiguous ones that need clarification and further study. As for permissable murder, Jesus very adimently states that we will be judged how we judge others thus leading to the conclusion that if someone murders someone based on a judgement that that person is a murderer, then they are guilty of the same thing and will be held to the same standards.
Even if when properly understood Christianity would not lead to attrocities, its various 'misinterpretatins' remaina potent historical force. This doesn't undermine the spiritual value of 'True Christianity', assuming there is such a thing, but it does mean that a number of political concerns about Christianity as a whole survive the 'not true Christians' defense.
First of all, it is not up to us to decide whether or not someone is a "true Christian", though that term is conveniently used in the heat of a debate due to rhetorical simplicity.
However, we can denounce sin, but must allow justice to be handled lawfully. You can see how frustrating the topic of abortion is to christians that some would fly off the handle and murder a doctor or an expectant mother for themselves doing murder. Logically thinking people would realize that it makes no sense.
As for how to know your Christianity is the true Christianity is best left to a pastor to answer. While many people seem to have valid points, there are benchmarks in scripture, and if their particular point of view does not fall within those guidlines it cannot actually be Christian.
. Another might might argue that any particular killing (of abortion doctors, say) could be morally permissible under 'God's law'.
I can't think of where someone would pull that from, but for the sake of argument I will take that as being the case.
For a person to obtain that from a scripture and then act so irrationally, they did not study enough of the Bible to make an informed, spirit-lead decision.
There are sufficiently contrary themes in the Bible, that citing certain texts of themes which point in a direction I would consider positive, provides me with no assurance that others may not point to other passages and claim they provide a warrant to commit attrocities.
YEs, people interpret thing to mean what they want. If scripture is aproached objectively and not with someone with their own intentions and motives in mind, and also with prayerful meditation, the scripture will not be misinterpretted.
I probably missed something in there... I'm a little distracted right now. I'll be back to this topic later.