There is a difference between the Sabbath and Mosaic law.
The Sabbath is God's rest and we that enter it receive his rest.
This we receive by faith through Jesus Christ.
Mat.11:28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.
The Sabbath is more than simply one day of the week.
God did not rest because he became tired.
God rested for our salvation.
Romans 9:28 For he will finish the work, and cut it short in righteousness: because a short work will the Lord make upon the earth.
29 And as Esaias said before, Except the Lord of Sabaoth had left us a seed, we had been as Sodoma, and been made like unto Gomorrha.
Mat. 24:21 For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
22 And except those days should be shortened, there should no flesh be saved: but for the elect’s sake those days shall be shortened.
The literal law is fulfilled by Jesus.
It through his atonement we are by faith made new through his righteousness.
No longer under the law but new creatures.
These laws are the shadows of the coming of Christ,
Clean and unclean and Sabbaths and sacrifces.
Col.2: 16 Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days:
17 Which are a shadow of things to come; but the body is of Christ.
This I say by faith we are made new because we have not literally died and bee born again but by faith we reckon oursleves dead to sin and resurrected in the resurrection of Christ.
Romans 6:11 Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.
This day of salvation this day of God's rest is more than a literal day but this day we have today through faith in Jesus Christ and this day will come with his return.
2 Peter 3:8 But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand ayears, and a thousand years as one day.
9 The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
10 But the day of the Lord will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up.
Our Lord Jesus Christ brought to us this day of salvation and it is through him we are by faith made new and do enter his rest.
I say by faith because we are not yet literally born again and this literal day has not yet come.
The day of the lord will come with the return of Jesus who will rule the world for one thousand years.
Edit to those who believe the Sabbath is simply one day of a week...Why did Christ curse the fig tree? Are we to bear fruit in season and out of season or do we simply follow the law?
Friends if you are made new you are not under the law but freed from the law and you will bear fruit in season and out of season not because the law says so but because you are made NEW.
The Jews followed the law because they thought it was good to make them righteous they missed the spiritual meaning behind the law. The law makes no one righteous not one.
God is all knowing and foreknew man could not uphold his law...We failed. God did not give us the law to make us righteous. He gave us the law to know our sin and to see our need for a Savior. It is through Christ we can be made new through his righteousness not our own.
The law condemns us to death and Jesus brings us the resurrection.
There are wonderful truths and spiritual meanings behind the law. The law is God's righteousness not man's. It is important that we understand the meaning of the law and the meaning of the Sabbath and the sacrifices and the clean and unclean laws that represent our salvation through Jesus Christ.