Mark 2:27-28, " Then he said to them, “The Sabbath was made for man, not man for the Sabbath. So the Son of Man is Lord even of the Sabbath.” "those weren't God's laws - show me where God said it is a sin to heal on the sabbath? - in fact God said feed and water your animals on the sabbath - save life on the sabbath
chewing grains on the sabbath is also not against God's laws - you are allowed to eat on the sabbath and eating a handful of grain is fine - working your fields that you earn a living from and making money on sabbath is all God said not to do
God never said you couldn't go into the homes of the uncircumsized
see that is what i mean - anti-nomians have no idea what exactly God said you can and can't do
every law you cited was a man-made law - Jesus and paul were all the time rebuking hypocrites about how the hypocrites make man-made laws that nullify God's laws -
I don't know what could be clearer than that. The Sabbath was created for one purpose only: to give people a rest, a.k.a., a day off. Life was hard in Biblical times, so God's command was/is necessary to rest from regular daily work. Showing mercy to others takes precedence, as does healing.