I can not accept this. Jesus kept all of God's laws, including the Sabbath, perfectly. What He didn't do was follow men's traditions (Pharisees) regarding God's laws, and that had them bent out of shape.This is from Jack Kelley
...But Jesus worked on the Sabbath (John 8:14-16)...
To reiterate what Jan said: The law is the law. Any infraction against God's law is rebellion and the penalty is death, not just for keeping the Sabbath (Romans 6:23).
If we were able to save ourselves, we would have to keep the law perfectly, every day of our life until death, both inwardly and outwardly. If we could do that, Jesus could have skipped the cross. We can't. Paul discusses this in Galatians. We do not depend on our abilities to keep the law for salvation. Christians are justified by grace through faith, not the perfection of our works. The law is not abolished by Christ. The law is fulfilled. But if someone does not accept Christ's gift of salvation, the law is very much still in effect, and they will be held accountable for any infraction of it, because being under the law is a curse. (Galatians 3)
So, taking another example from the ten commandments, if a Christian commits murder, does that Christian become unsaved? No, because he has freedom from the law, and nothing can separate us from the love of God (Romans 8:39). Should a Christian commit murder? I think we all know the answer to that. (Romans 6)