Even more additional thoughts about the 9th Commandment - Do Not Lie!

The most important ingredient to building a moral society is truth, both inside and outside a courtroom. The prohibition against "bearing false witness" does not only demand that truth reigns supreme in a trial, but that it is a societal value throughout the culture. Bad things happen when people believe lies. With truth, we can build a decent society. Without it, even the other nine commandments won't help.