Well, you have asked a very good question, and one that takes a bit of explanation. I will try to explain it by using the scriptures.
The Laws and the Covenants
All quotes are taken from the
New Revised Standard Version of the Bible. Added emphasis is mine. Note numbers have been removed for clarity.
Notice from the above verses, the old law is not removed but just no longer in effect. It is still needed to show how we came to our present state of grace.
Here Paul explains that we are no longer under the law but instead under grace.
We have died to the law through the body of Christ, we are no longer held by the law and it enslaves us no more.
We are free from the law of sin and death! We have new commandments and no longer have to be slaves to the old written laws.
Jesus put an end to our having to be slaves to the old written law.
Here is the new law (commandment).
Again we are reminded of the new law (commandment). This is now written in our hearts. Our old stony hearts are now fleshy hearts just as the old law was written on stone, the new law is written in our hearts. (see the parallel)
Here Paul tells how he is only bound by Christ’s law. The law of Jesus is easy to remember. It is in our hearts and not written on paper or stone.
We are not justified by the works of the law but through our faith in Jesus the Christ.
Are we justified by the written law or by believing (faith) in what we heard?
If we remain under the works of the law, then we are under a curse! We can no longer observe all of the things written in the book of the law. Even when there was a temple and the ability to have sacrifices, those of the old covenant were not even able to do so.
Jesus set us free from the guardianship of the law. There is no need for the tutor after we have graduated to being justified by faith.
Paul was disappointed by those who after he had been with them were still keeping the ‘Holy Days’ of the old covenant laws.
Those who would be subject to the old covenant laws did not listen to those laws nor do them. Now, instead of listening to the new law Jesus has given us, they continue to cling to the old laws.
Those who would continue on with the old covenant laws have fallen away from grace.
Here is the law we are to have written in our hearts. There are actually two…. The first one is to love God with all your heart soul and strength. These two are the laws (commandments) Jesus wants us to keep. These are the commandments referred to in the book of Revelation.
If we are truly led by the spirit, we should not subject ourselves to the written law of the old covenant.
I urge you to check what the above verse implies for yourself.
We are told to avoid controversies about the old written law and such as they are not profitable for anything. (something we are guilty of at this time)
This confirms the stone tablets are also part of the old covenant written law.
We may see from these verses, there is nothing new in what Paul is saying. The new covenant was prophesied in the book of Jeremiah.
Paul is showing how the prophecy has been fulfilled .
The old covenant became obsolete when Jesus died and then later it disappeared with the destruction of the second temple. It was no longer able to be followed. All of the sacrifices were unable to be observed nor any of the temple services of the old covenant.
Again it is confirmed the
tablets of stone were of the
old covenant. This old covenant is finished and we are now living by the
new covenant.
Just as God said He would, He sent His son and made a new covenant with His people. He confirmed it with many in the last of the seventy weeks. He wrote it in their hearts and not on tablets of stone as before.
Please be aware, I am not saying the Sabbath was not sanctified by God as a Holy day. It was sanctified by God right after the sixth day of creation. What I am saying is we should not keep the old covenant laws concerning how it is to be observed. One may work, build a fire or anything else one normally would do, even on the Sabbath. What we must do is remember the Sabbath is sanctified by God as Holy! I am not saying we should observe a pagan day rather than the Sabbath for the day we should have church services we may have church on any of the days of the week as long as we don’t acknowledge that day of the week as being sacred to a pagan god.
We have but one what may be called ‘Holy Day’ now. This day is the day when we observe what may be called the ‘Christian Passover’. By eating the bread and drinking the wine we are to remember the sacrifice Jesus made for us and the reason He made it. This day is not just to be observed once a year as we may have been told, but rather as often as needed to remind us of the sacrifice God made when He gave His son as the final sacrifice to save us from slavery. This freedom is not just to the slavery of sin, but also from the slavery to the laws of the old covenant. Continuing to keep the old written laws of the old covenant is refusing to accept the grace Jesus died to give us through His body and blood. Refusing to accept the new covenant, we curse ourselves by rejecting His gift.
We are now free from all of the burdens of slavery to laws and sin. We have in us a heart not of stone but of flesh and written in or on our hearts and minds are the commandments of our Lord Jesus the Christ. We are not subject to any of the old laws written on stone or by Moses on paper. Instead, we have the Holy Spirit as our guide and know in our hearts what is righteous and thus what we should do. If perhaps we slip, we know it is our flesh that has made the slip and not of our spirit. Yes, we are to remember the old laws, written on the tablets, for if we did not know what they said, we would not have known sin.
Should we continue to sin because we are free from the law? Of course not!
Let’s think of a little story to illustrate the situation:
A certain man owned a store where when we were kids, we would go in and take what we wanted and put the things in our pockets without paying. The man knew we were taking those things but didn’t say anything, thinking he would wait till later to talk to our parents about the problem. Later, we learn the man knew we had taken those things and is going to talk to our parents about the problem. After we had learned the man was going to talk to our parents, his son goes to him and pays for everything we took and tells him the account is settled. Should we now after learning how his son has redeemed us from the consequences of our wrong doing, go back to the store and continue to steal from the store owner? We should know from this point, we were wrong and not intentionally do what we had done before.
We need to understand the old covenant is gone and behind us and accept the new covenant as it was made with us. There is no need to observe what the people of Israel accepted as the first covenant as they broke it and a new covenant was established to replace it. We are now members of the family of Abraham and heirs to the promise. As members of Israel, we have a new covenant and should observe it because the old covenant has been abandoned.
Further proof of the abandonment of the old covenant follows.
Magnesians is a letter written in the early 100's C.E.
Notice how the Sabbath is still on the sixth day of the week, but the first day of the week is the Lord's Day.
The Didache was written around the years 50–160 CE, most likely 75 CE.
This proves the Sabbath was not changed to Sunday by the Roman Catholic Church, as is often claimed by many who hold fast to the Saturday Sabbath.