“One law shall be to him that is homeborn, and unto the stranger that sojourneth among you” [Ex 12:49] He commanded that we are to keep them unto a thousand generations. “Know therefore that the LORD thy God, he is God, the faithful God, which keepeth covenant and mercy with them that love him and keep his commandments to a thousand generations”[Deut 7:9]
I also find it interesting that you avoided the hard questions just as my former Lutheran pastor did. I see you also bring out the usual quotes, but how about this one, the Words of God spoken through Jeremiah 16:19
“O LORD, my strength, and my fortress, and my refuge in the day of affliction, the Gentiles shall come unto thee from the ends of the earth, and shall say, Surely our fathers have inherited lies, vanity, and things wherein there is no profit.” (in context Jer in whole as it explained a lot to me about the lies of my fathers)
Who are these Gentiles God speaks of? It is no wonder God has kept the veil over the hearts of the House of Judah, which encompasses the House of Benjamin. If I was them, I wouldn't accept the Messiah the main stream Christian churches teach either. You neither follow him on any of His Sabbaths let alone join Him for His Festivals which are crucial for understanding in order to follow Him. There is only one Father and thus there is only one set of instructions for the children of His house to understand and obey. It wasn't until my pastor told me that my Father's rules were not for me, that His son came and rebuked them for all future believers. Now had Messiah really done this, he would not have been without blemish now would he? He would have been rejected as the Messiah, by both the Father & the people. So getting back to the Gentiles, why were so many baptized into the faith of Messiah? How did they know He was truly "The Word" made flesh? Could it be that mainstream pagan Christian/Evangelical/Protestant denominations do not teach the truth because of what they have inherited...LIES!?
The truth is, Christians, whether Jew or Gentile, are NOT under obligation to keep the ceremonial laws of Old Testament Israel, i.e., the Sabbath, the Hebrew calendar, the temple sacrifices, the dietary laws, circumcision, and the like. These all served a purpose, poinnted ahead to the coming of Christ, were fulfilled in Christ, and are no longer binding. They were a shadow of the things to come, as St. Paul says:
"Therefore let no one pass judgment on you in questions of food and drink, or with regard to a festival or a new moon or a Sabbath. These are a shadow of the things to come, but the substance belongs to Christ" (Colossians 2:16-17).
This was a major issue in the early church, as we can see from the Book of Acts and the Epistles of Paul. The Judaizers, who insisted on the things you are insisting on, were Paul's main opponent, and they were wrong--as you are. You have been misled.