I personally have looked at this for me and have come to the conclusion that we should, as Christians, keep the Commandments. Does that mean that if you follow the Commandments you will have Eternal Life? No, only the Blood of Jesus will provide this. Here is how I broke it down for me, concerning the Sabbath. The command that I read is,
Exodus 20:8 “Remember the Sabbath day by keeping it holy. 9 Six days you shall labor and do all your work, 10 but the seventh day is a sabbath to the Lord your God. On it you shall not do any work, neither you, nor your son or daughter, nor your male or female servant, nor your animals, nor any foreigner residing in your towns. 11 For in six days the Lord made the heavens and the earth, the sea, and all that is in them, but he rested on the seventh day. Therefore the Lord blessed the Sabbath day and made it holy.
This is a Command of GOD, not the Law, the Law came later. What does "HOLY" mean? In my feeble mind, Holy means Good and Right. As in only do what is Good and Right. When Jesus was asked buy the Rich Young Man about Eternal Life, he told him to follow the commands and started rattling them off. During this exchange the Young Man calls him "Good Master or Good Teacher" and Jesus tells him there is only One who is Good.
Matthew 19:17 So He said to him, “Why do you call Me good? No one is good but One, that is, God. But if you want to enter into life, keep the commandments.”
Jesus also said doing good on the Sabbath was allowed and gave examples.
Matthew 12:11 Then He said to them, “What man is there among you who has one sheep, and if it falls into a pit on the Sabbath, will not lay hold of it and lift it out? 12 Of how much more value then is a man than a sheep? Therefore it is lawful to do good on the Sabbath.”
The way I understand the command is to Remember the Sabbath and keep it holy, only doing what is good and right.
There are some who say the Day was changed to Sunday. I find no scripture quoting GOD or Jesus that says the Blessing and Sanctification GOD had placed on the Sabbath Day was removed and then placed on Sunday. Jesus supported the keeping of the commandments. The New Testament is full of quotes saying "blessed are those keeping the commandments and faith in Jesus". If you are Asking, Seeking, and Knocking, you will be shown the right way to go about this.