If the Sabbath was established in the creation week. Then logically, the Sabbath cannot be an eternal law because it has a starting point. Eternity does not have a start or an end.
I think this was posted somewhere else..
ARE GOD'S 10 COMMANDMENTS ETERNAL?
All of God's 10 commandments are eternal! That is why God spoke them and wrote them on tables of stone *
Exodus 20:1-17;
Exodus 32:16. They were spoken by God alone and were the work of God alone written on two tables of stone. The scriptures teach that whatever God does, It shall be forever. Nothing can be added to it, And nothing taken from it. God does
it, that men should fear before Him (
Ecclesiastes 3:14). God's 10 commandments were the direct spoken Words of God *
Exodus 20:1-17. The scriptures teach also that God's Word is forever and we are to live by every Word that proceeds out of the mouth of God All the 10 commandments came directly out of the mouth of God *
Exodus 20:1-17 therefore Gods' Word (10 commandments) are eternal *
1 Peter 1:25;
Matthew 4:4;
Psalms 119:85;
Isaiah 40:6-8;
Matthew 24:35;
Isaiah 55:11. God's 10 commandments were the work of God alone written on stone and directly spoken by God alone making them God's work and Gods' Word which the scriptures teach are forever. Sin in the scriptures is defined as breaking anyone of God's 10 commandments *
James 2:10-11;
1 John 3:4 or not believing and following God's Word *
Romans 14:23. There will be no sin (breaking anyone of God's 10 commandments or not believing and not following His Word in heaven). Those who continue to practice known unrepentant sin will not enter into God's Kingdom according to Paul *
Hebrews 10:26-31 so all of God's 10 commandments will be obeyed forever and never more broken! So no there will be no murder no adultery, no stealing no lying, no covetousness, dishonoring our parents, no idols, no worshiping other Gods, no using God's name in vain and of course we know we will still continue to remember the Sabbath day to keep it holy according to God's 4th commandment *
Isaiah 66:23. So simply in summary God's Word is and is law is eternal. There will no longer be sin (breaking Gods' commandments) in Heaven.
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In regards to the Sabbath? see Isaiah 66:22-23 where the Sabbath will be continued to be kept in the new Heavens and new earth.
Hope this is helpful.