I have been taught that there are at least two levels of teaching by the church: dogma which does not change and doctrine which does. The word being used in this discussion is doctrine. Do you differentiate between dogma and doctrine? 
The Ten Commandments are so basic that nearly every society has owned them with perhaps some difference re the god to worship and when and how. But the do not steal, kill etc are pretty universal. Of course they are OT not new. As a child we were taught them but I confess as an adult I reflect more on the NT and particularly Jesus' sayings like the sheep and goats and the sermon on the mount/plain. I also frequently think of God's continual request of the people of Israel to worry less about their sacrifices etc and more about caring for the poor: the widows and orphans and the aliens in their midst. These were the people without status in their society: widows and orphans because they had no man to stand up for them and aliens who were not citizens.