Jesus has become our Sabbath. When he said, Come unto me, all you who are weary and heavy laden, and I will give you Shabat/Rest/Sabbath, he changed the orientation from external observances to intimate relationships with God so that we may find our rest in Him.
Modern Culture confuses grace with libertinism, grace is to bring us into a lifestyle of holiness, enabled by the Holy Spirit who lives in us.
“Judge not, lest you be judged” has been misinterpreted to mean that no matter what anyone does, we should not judge the behavior. He pointed out that we are not to condemn someone for their sins, lest we get condemned for ours, but that does NOT mean we are not to discern what is right and wrong, or identify certain behaviors as sin.Grace does not mean there is no law and we are free to behave any way we wish. Grace is to lead us to holiness, which is the walking in the presence of God and reflecting his character.