What GOD did in Genesis 2:1-3 is not in dispute.
However, the 7th day Sabbath is a commandment, given to Moses and the Israelites on Mount Sinai, by God, as part of the Sinaitic covenant.
It did not exist prior to this time - that is incontrovertible!
Also, the parties to this covenant were God and the Israelites.
Yes, there is provision in this covenant for Gentiles to join in the covenant with the proviso that they become JEWS.
The Siniatic covenant was never a universal covenant in the mould of the Abrahamic covenant!
So, whoever those individuals mentioned in Is 56:1-7 were, they became JEWS, in every way as described IN DETAIL by that passage.
None of this is GENERALISABLE, particularly with respect to the New covenant, since in its institution the Sinaitic covenant is abrogated!
make up your own way?
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Numbers 15:15-16, “One law is for you of the assembly and for the stranger who sojourns with you – a law forever throughout your generations. As you are, so is the stranger before [/FONT][FONT=Times New Roman, serif]
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. One Torah and one right-ruling is for you and for the stranger who sojourns with you.”
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Psalms 105:6-10, “O seed of Aḇraham His servant, Children of Ya‛aqoḇ, His chosen ones! He is [/FONT][FONT=Times New Roman, serif]
יהוה [/FONT][FONT=Times New Roman, serif]
our Strength; His right-rulings are in all the earth. He has remembered His covenant forever, The Word He commanded, for a thousand generations, The covenant He made with Aḇraham, And His oath to Yitsḥaq, And established it to Ya‛aqoḇ for a law, To Yisra’yl – an everlasting covenant.”
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Psalms 105:6-10, “O seed of Aḇraham His servant, Children of Ya‛aqoḇ, His chosen ones! He is [/FONT][FONT=Times New Roman, serif]
יהוה [/FONT][FONT=Times New Roman, serif]
our Strength; His right-rulings are in all the earth.
He has remembered His covenant forever,
forever
The Word He commanded, for a thousand generations,
The covenant He made with Aḇraham,
covenant made with Abraham
And His oath to Yitsḥaq,
continued with Issac
And established it to Ya‛aqoḇ for a law,
continued with Jacob
To Yisra’yl – an everlasting covenant.”
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continued with Israel
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STAND FAST WITH WHO?...
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Galatians 3:27-29, “For as many of you as were immersed into Messiah have put on Messiah. There is not Yehuḏi nor Greek, there is not slave nor free, there is not male and female, for you are all one in Messiah [/FONT][FONT=Times New Roman, serif]
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. And if you are of Messiah, then you are seed of Aḇraham, and heirs according to promise.”[/FONT]
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Psalm 89:26-37, “He will call out to Me; ‘You are My Father, O YHWH! You are the Rock of My salvation!’ And I will make Him My firstborn, higher than the kings of the earth. My mercy I will keep for Him forever and My covenant will stand fast with Him. And I will establish His Seed forever, and His throne will be as the days of heaven. Should His children forsake My Law, and refuse to walk in My judgments; Should they profane My statutes, and fail to keep My commandments; Then I will punish their transgression with the rod, and their iniquity with lashes from the whip. Nevertheless, My lovingkindness I will not utterly withdraw from Him, nor will I ever betray My faithfulness. My covenant I will not break, nor will I change what has gone out of My lips. Once for all, I have vowed by My holiness, I cannot lie, and I say to David; His Seed will endure forever, and His throne will endure before Me like the sun. His throne will be established forever like the moon: the faithful witness in the sky.”[/FONT]