I am a Gentile and have never been under the law nor in covenant with God.
The sabbath was a sign of the former covenant between God and Israel.
Hebrews 8:13
When He said, “A new covenant,” He has made the first obsolete. But whatever is becoming obsolete
and growing old is ready to disappear.
Hebrews 7:12
For when the priesthood is changed, of necessity there takes place a change of law also.
Hebrews 7:18
For, on the one hand, there is a setting aside of a former commandment because of its weakness
and uselessness (for the Law made nothing perfect), and on the other hand there is a bringing in
of a better hope, through which we draw near to God.
Hebrews 7:22
So much more also Jesus has become the guarantee of a better covenant.
The root of your mistake is simple. You are trying to make covenant language erase the commandments that God Himself said would stand forever. Jesus never taught this, and neither did the prophets. How long will you reject the truth of scripture and replace with your own man made doctrines?
First, Jesus never said Gentiles were outside of God’s expectations. In Matthew 28:19 He told His disciples to teach “all nations.” This means His teachings, His commandments, and His ways are for everyone. He did not have one standard for Jews and another for Gentiles. In John 10:16 He spoke of “other sheep” that were not of Israel. He said they would hear His voice and become one flock with one Shepherd. One Shepherd means one teaching, one way, one obedience.
Second, Jesus made it clear that the commandments remain the measure of sin and obedience for all people. In Matthew 5:19 He warned that anyone who breaks “one of the least of these commandments” and teaches others to do the same will be called least in the kingdom of heaven. He said this to the crowds, not only to Jews. And He did not say “only the Jews must keep them.” He spoke about people, not tribes.
Third, Scripture shows that Gentile nations were judged by God long before Israel even existed. In Genesis 6 and in Genesis 18 to 19, God punished whole nations for wickedness. They were not Jews, and they were not under the Sinai covenant. Yet God held them accountable because His moral law is universal. God’s law is His character. It applies to all people because He is the God of all the earth.
Fourth, the Sabbath did not begin with Israel. It began at creation. In Genesis 2:2 to 3 God blessed the seventh day and made it holy. This was before Abraham, before Moses, before Israel even existed. Something God blessed at creation belongs to all humanity, just like marriage and life itself. Israel later received the Sabbath as a sign of the covenant, but the day itself belongs to God from the beginning.
Fifth, Jesus kept the Sabbath and taught the true way to honor it. He never treated it as something temporary or as something that would disappear. In Matthew 24:20 He warned His disciples to pray that their future flight would not be on the Sabbath. This warning points far ahead, long after His resurrection. If the Sabbath were ending, He would not give a command about it for the future.
Sixth, when someone says, “I am a Gentile and have never been under the law,” they forget that Jesus will judge all nations, not only Israel. In Matthew 25:31 to 46 Jesus describes His return. All nations are gathered before Him, and He judges them by obedience, love, mercy, and righteousness. Jesus is not only the Judge of Israel. He is the Judge of all people. If the law made nothing perfect, the commandments still reveal what is good, right, and pleasing to God.
Seventh, Jesus said plainly in John 14:15, “If you love Me, keep My commandments.” He did not say, “If you are Jewish.” He did not say, “If you are under the Sinai covenant.” He spoke to disciples who would go into all nations. His commandments are the Father’s commandments, the same commandments that define sin in the Old Testament. In Matthew 19:17 He told the man who asked about eternal life that if he wanted to enter into life, he must keep the commandments.
So the whole argument collapses for one simple reason. you base your false teaching on a covenant argument, not on Jesus. Jesus never said the commandments are abolished. He never said Gentiles are free from God’s law. He never said the Sabbath will disappear. He never said there are two different standards. He never divided His followers this way.
God’s expectations are the same for all people because He is the same God for all. Jesus came to bring us back to the Father’s ways, not free us from them.