In a commentary on ethics, Loftus critiques divine command theory and modified divine command theory. He objects to the idea that we should consider God's commands as good. He says on p. 38 that "this makes God commands arbitrary because there is no reason why God commanded something other than the fact that he did". He cites the Euthyphro dilemma as an example of this conundrum.
What is completely ironic about the initial salvo from Loftus is that he doesn’t even acknowledge that humans would not even know what good was without a transcendent moral anchor. When he criticizes Christian morality as based on God’s commands, he might as well be Don Quixote tilting at windmills all in the name of an invented, artificial righteousness.
There have been many attempts to show that the God of the Bible has committed immoral actions and therefore, Christianity is built on a spurious ethic. Usually, these charges are trumped up from a misunderstanding of the passage or taking the passage out of context.