Where do Christians get their morals from? God? What, does he sit next to you all day and tell you what to do? No, you read the bible (written by a bunch of random people, edited by even more, translated and retranslated over and over again), get info from preachers, and listen to your family. None of this is "from god". It is derived from humans who *attempt* to translate what they think god wants.
No Christian ever reads the bible and gleans from it something that they already don't do. Most Christians use their faith to provide support for things they already believe in from their family and friends. The Bible says rape and torture are ok for certain circumstances (Old Testament). If you disagree with that, you are using MORALITY from this world to justify said choice. Thus, your entire faith in the morality of the Bible/Jesus unwinds completely. It is all filtered through a modern mindset that warps and changes it so it is compatible with society. If you reject one part of the Christian "morality", then you really don't accept Christian morality at all. Morals isn't a buffet, you can't pick and choose.
Christians use their religion to justify everything, from slavery to war. There is no Christian morality whatsoever. There is, however, an arrogance that comes from it because they *think* god told them to do it. In many ways, this becomes more dangerous than non-theists, because we are humbled in the reality of our moral situation.