I am appreciating all the replies. God has given us a day in which to rest with Him. He didn't need to test but He wanted to spend a day with His creation an intimate day with His Son and Daughter Adam and Eve. He is God and He changes not. Many skip by the fact that Mark 2:27,28 plainly tell us, these are Jesus own words, And he said unto them, The Sabbath was made for man (not just Jews but all who proclaim the name of Jesus), and not man for the Sabbath: verse 28 Therefore the Son if man (who is the Son of man?) is also Lord of the Sabbath. (not a Sabbath but the Sabbath which denotes God's specific day of rest). So Jesus is Lord of the Sabbath.
I sense many will have the argument that the Sabbath was done away with at the cross so we don't need to keep the "Jewish Sabbath". Then why does Paul in Hebrews, years after Jesus death, burial and resurrection say this in Chapter 4. Verse 4-11. Verse 4 says KJV For he spake in a certain place of the seventh day on this wise, And God did rest the seventh day from all His works. This refers back to Genesis 2:2,3. Why would God in Exodus 20:8-11 clearly command us to remember and keep the Sabbath Holy. What does it matter what day we worship God? Can't we worship Him everyday? While this is true it still doesn't excuse the fact that God has set aside the seventh day of the week as a day to honor and worship Him. In this commandment alone shows God's authority. He made the heavens and the earth. It is His seal. It shows creation and redemption if we read again in Deuteronomy 5:15, the word says And remember though wast a servant in the land of Egypt, and that the Lord thy God brought thee out thence through a mighty hand and by a stretched out arm: therefore the Lord thy God commanded thee to keep the Sabbath day. Again God says to remember. Pharoah would not let Isreal go to worship their God. It was a battle of worshipping God or worship man.
Concerning the Jewush comment - I understand that Gentiles are grafted in as well. I am a gentile grafted into the vine. The term Jew Paul was referring to was to the New but also to the Gentiles who would allow God to writes His law in their hearts. ThJews were a stubborn and stiff-necked people just like we are. We don't want to be obedient to God's commands this is our carnal nature for it is enmity with God. But if we reason with a desire to trult seek Him we will be guided into all truth. As Matthew 5:6 says Blessed are they that do hunger and thirst after righteousness for they shall be filled. We must possess a teachable Spirit. God is looking for those that will worship Him in truth and Spirit John 4:23