My mother had emergency cancer surgery on a Sunday. Thank God the doctors, nurses, and the rest of the team were there at work.
First of all, if I’m not mistaken, Sunday and the “sabbath” are not necessarily equivalent. Second of all, I’ve always been of the understanding that this commandment was primarily so that servants would be able to get rest once a week, although I don’t remember where I read that.
Jesus didn’t have a problem with breaking the “rules” about what you could or could not do on the sabbath and in fact got called on it a couple times. Once, He made the following statement:
Mark 2:27
Then he said to them, “The sabbath was made for man, not man for the sabbath.
If you work a job where you are working 7 days a week and have no time for reflection, or your family, or any sort of “regenerating” your spirit, then I think you need to consider this commandment. Otherwise, follow the example of Jesus. If you are hungry, go ahead and pick grain on the sabbath. If your animal is in trouble, rescue it on the sabbath. If someone needs healing, go ahead and heal on the sabbath, etc …
Also, in case they are relevant:
Gal 4:8-11
At a time when you did not know God, you became slaves to things that by nature are not gods; but now that you have come to know God, or rather to be known by God, how can you turn back again to the weak and destitute elemental powers? Do you want to be slaves to them all over again? You are observing days, months, seasons, and years. I am afraid on your account that perhaps I have labored for you in vain.
Col 2:16
Let no one, then, pass judgment on you in matters of food and drink or with regard to a festival or new moon or sabbath.
Alan