Do you affirm GRFS as was elaborated?
If so, then I don't see it indicating that the Sabbath law (which commanded death for not observing it) is mandatory for Christians and I hope that your faith is weak rather indicative of falling from grace per Paul in GL 5:1-10.
For those of us who do affirm the kerygma, let us obey the instructions of Paul in RM 14:1-5,19&22 and 15:5:
"Accept him whose faith is weak, without passing judgment on disputable matters. One man's faith allows him to eat everything, but another man whose faith is weak, eats only vegetables [including carrots]... One man considers one day more sacred than another; another man considers every day [including the sabbath] alike. Each one should be fully convinced in his own mind.
Let us therefore make every effort to do what leads to peace and to mutual edification... whatever you believe about these things keep between yourself and God... May the God who gives endurance and encouragement give you a spirit of unity among yourselves as you follow Christ Jesus."
If so, then I don't see it indicating that the Sabbath law (which commanded death for not observing it) is mandatory for Christians and I hope that your faith is weak rather indicative of falling from grace per Paul in GL 5:1-10.
For those of us who do affirm the kerygma, let us obey the instructions of Paul in RM 14:1-5,19&22 and 15:5:
"Accept him whose faith is weak, without passing judgment on disputable matters. One man's faith allows him to eat everything, but another man whose faith is weak, eats only vegetables [including carrots]... One man considers one day more sacred than another; another man considers every day [including the sabbath] alike. Each one should be fully convinced in his own mind.
Let us therefore make every effort to do what leads to peace and to mutual edification... whatever you believe about these things keep between yourself and God... May the God who gives endurance and encouragement give you a spirit of unity among yourselves as you follow Christ Jesus."
There was a death sentence in the OT for breaking many of the commandments of God, not just the Sabbath. We are not in a theocracy anymore- Judgement is the last day.
All gets sorted out soon enough.