After all, every Christian accepts that the Ten Commandments are the words of God as handed down to Moses.
Which 10 commandments -- those from Exodus 20 or those from Exodus 34? According to the Bible (Ex 34.1), Yahweh says both sets of tablets handed to Moses contained exactly the same commandmets, but they don't (e.g. the commandment against killing is on the tablets from Ex 20, but not on the tablets from Ex 34.).
Just one of several errors the perfect god of the bible makes in his own book.