We all suffer from distorted thinking and logic or inflexible thought. Those cause most of our mistakes. Don't believe me or any one else, only God. Be as those of Berea and test everything with the scriptures (Acts 17:10-12). The four beasts of Daniel 7 are kingdoms; history shows the 4th is Rome. Daniel 7:25 says he (The Roman Emperor) shall "think to change times and laws." Constantine made a law in 321 closing all shops on Sunday the day of Sol Invictus, the sun god. Constantine later turned the empire over to the Bishop of Rome, who retained those laws, thereby changing the day of worship to Sunday. Sunday is the day of the sun god. Look up "Constantine" and "Sunday" in an Encyclopedia. The Bible says the seventh day is the Sabbath; God has not changed it and no one else has the authority.
The Greek word translated as covenant is also translated as testament. The New Covenant, which was ratified by the blood of Jesus at his death, does not address a change in the Sabbath. In Galatians 3:15, Paul says that a covenant (testament) can not be changed after the death of the testator. In Romans 7:12, Paul said "Wherefore the law [is] holy, and the commandment holy, and just, and good." The fault with the old covenant was not the law, but the people that were not keeping it. The new covenant is the same law as the old, written on believers' hearts (Jeremiah 31:33). If you believe the commandments were abolished, do your wife and employer know that you believe it is permissible to lie, steal and commit adultery?
The marriage covenant between God and mankind starts in Exodus 19:3 and goes through Leviticus. And Revelations 22:14 says, "Blessed [are] they that do his commandments, that they may have right to the tree of life, and may enter ... into the city." New Jerusalem where Jesus went to prepare a place for us. Those that love Jesus will keep his commandments (John 14:15, John 14:23), and have a right to enter into the New Jerusalem (Heaven).
If the law is abolished, why did Jesus say in Matthew 5:17, "Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfill."