Are Christians still under the Ten Commandments?
No, Christians are not under the Ten Commandments as a binding legal code, because Christ nailed the Law, including the Ten, to His cross, ending it. Yet believers remain under the Ten's moral code, which still has a valid role in Christian experience, though not as a religious dogma.
Les explains that the Law, including the Ten Commandments, was against us and contrary to us, so Christ took it out of the way by nailing it to His cross. The Cross was the end of the Law. Therefore, we are not under their binding power. Yet we are still under their moral code; we live under the moral code of the Ten, and it has a valid role in our Christian experience, but not as a religious dogma. He points to Romans 13 for support.