The ten commandments written on stone tablets were part of the Old Covenant that God made with the nation of Israel at Sinai. Israel failed to keep the Covenant and God promised a New Covenant.
Jeremiah 31:31-34 Behold, the days come, saith the LORD, that I will make a new covenant with the house of Israel, and with the house of Judah: 32 Not according to the covenant that I made with their fathers in the day that I took them by the hand to bring them out of the land of Egypt; which my covenant they brake, although I was an husband unto them, saith the LORD: 33 But this shall be the covenant that I will make with the house of Israel; After those days, saith the LORD, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people. 34 And they shall teach no more every man his neighbour, and every man his brother, saying, Know the LORD: for they shall all know me, from the least of them unto the greatest of them, saith the LORD: for I will forgive their iniquity, and I will remember their sin no more.
The writer to the Hebrews says:
Hebrews 8:8-13 For finding fault with them, he saith, Behold, the days come, saith the Lord, when I will make a new covenant with the house of Israel and with the house of Judah: 9 Not according to the covenant that I made with their fathers in the day when I took them by the hand to lead them out of the land of Egypt; because they continued not in my covenant, and I regarded them not, saith the Lord. 10 For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people: 11 And they shall not teach every man his neighbour, and every man his brother, saying, Know the Lord: for all shall know me, from the least to the greatest. 12 For I will be merciful to their unrighteousness, and their sins and their iniquities will I remember no more. 13 In that he saith, A new covenant, he hath made the first old. Now that which decayeth and waxeth old is ready to vanish away.
Jesus Christ is the mediator of the New Covenant ratified in his blood.
Hebrews 12:24 And to Jesus the mediator of the new covenant, and to the blood of sprinkling, that speaketh better things than that of Abel.
The commandments written on stone are replaced by the commandments of Christ.
John 15:14 Ye are my friends, if ye do whatsoever I command you.
In the commandments of Christ, 9 of the 10 commandments are repeated, but Sabbath observation is not. The observation commanded in the New Covenant is that of meeting often to share bread and wine in remembrance of Christ’s sacrifice.
1 Corinthians 11:23-29 For I have received of the Lord that which also I delivered unto you, That the Lord Jesus the same night in which he was betrayed took bread: 24 And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me. 25 After the same manner also he took the cup, when he had supped, saying, This cup is the new testament in my blood: this do ye, as oft as ye drink it, in remembrance of me. 26 For as often as ye eat this bread, and drink this cup, ye do shew the Lord’s death till he come. 27 Wherefore whosoever shall eat this bread, and drink this cup of the Lord, unworthily, shall be guilty of the body and blood of the Lord. 28 But let a man examine himself, and so let him eat of that bread, and drink of that cup. 29 For he that eateth and drinketh unworthily, eateth and drinketh damnation (condemnation) to himself, not discerning the Lord’s body.
This can be done on any day.
The early church found it convenient to meet on the first day of the week and this became a tradition. It is not to be confused with the Sabbath keeping of the Old Covenant.
The difference between the Covenants is that the Old was designed for the governance of a nation, whereas the New is designed for the governance of an individual of any nation.
The carnal ordinances of the Old (such as dietary restrictions and observance of days) do not apply in the New.
Hebrews 9:10 Which stood only in meats and drinks, and divers washings, and carnal ordinances, imposed on them until the time of reformation.
Hosea prophesied
Hosea 2:11 I will also cause all her mirth to cease, her feast days, her new moons, and her sabbaths, and all her solemn feasts.
Those who believe the gospel and are baptised into Christ are not commanded to observe the Sabbath.
I hope you find this helpful.
God bless,
Glenn