What I would include in my Commandments
1. Thou shall not allow slavery. Moses led the Hebrews out of slavery and struggled to free them. Yet God does not even prohibit slavery in his ten commandments. I would prohibit slavery and order employers to pay an honest wage and order workers to give an honest days work
2. Thou shall be clean in thy person and thy environment. God could have saved hundreds of millions of lives with this one. Sanitation was a major killer of mankind. Keep yourself clean to avoid germs. Do not pollute your drinking water or your environment. Could have prevented the plague and other killer diseases
3. Thou shall not engage in War. War is a practice of man and not God. God should encourage peaceful resolution of conflicts and consider war an act against God
4. Thou shall educate yourself and others. A critical trait of man. Learning and the spread of knowledge. You should strive to learn your whole life and spread knowledge to others
5. I would expand the honor your father and mother to honor your family. Parents should honor their kids, make sure they are fed and clothed and protected. You should work hard to take care of your family
You obviously have a fundamentally flawed view of scripture
1. Slavery within the Hebrew nation was a means to survive. For example, if you were down and out economically, you could become someone's slave in order to survive. Then in 7 years it was mandatory that you be free once again to see if you can do better. Also, all slaves rested on the Sabbath, something unheard of up until that time.
2. As far as keeping clean, you obviously have no clue as to the commandments given the Hebrew nation. They were told to be clean and wash appropriately. In fact, in Europe Jews followed these cleanliness laws and avoided the Black Death by doing so. At the time, no one knew why they were not dying, so they just assumed that they had made a deal with the devil and then began to kill them all off themselves.
3. God asks people to seek a peaceful resolution when able, however, the people that the Hebrews were kicking out of Canaan were not a peaceful people. In fact, they routinely sacrificed their children to pagan gods. It would be akin to sending in troops to Nazi Germany to end a Holocaust.
4. As for knowledge, the Hebrew people were educated, which is why we have the Bible today. Most during that time were not. In fact, most of what we know about that region from that time ONLY comes from the Bible, such as knowledge about the Philistine people. Historians questioned their existence until they went digging where the Bible said they were. And finally, Jews tend to be socio-economically mobile. Just look at the US today, the most wealthy tend to be Jewish, and no, they did not get there by being unknowledgeable.
5. When the commandments to honor your parents were given, children were seen as a retirement package to help take care of you when you got older, so mistreating them would probably be a big mistake since they will one day have diapers of their own to change, if you know what I mean. At least they did not engage in child sacrifice, until they turned from their God, that is.
All in all, the Ten Commandments were a light to a very, very, dark world.