Should a Christian observe the Sabbath?

After all the study, I have come to the conclusion that a Christian should observe the Sabbath.  Why?  First and foremost, the Sabbath, Passover and the Feast days are His (Jesus) Feast days or appointed times.  We know that Jesus and the Apostles obverse the Sabbath and feast days.  We know that Paul observe the Sabbath and feast days.  Paul tells a gentile church (Corinthians) observe the Passover and Feast of Unleavened Bread.  The Apostle John taught his disciple, Polycarp and they observe the Sabbath and Passover.  Polycarp taught his disciples and they observe the Passover and Sabbath according to writings of the Church fathers.  We know that the world society has been corrupted and when Jesus starts His rule ship at the start of the millennium, Jesus will restore all things according to His Word.  What are the first things Jesus will restore, is to observe the Sabbath (Temple will only be open on the Sabbath and Feast Days), observe the Passover on the 14^th, not on the 15^th as the Jews do today, and everyone will be forced to keep the Feast of Tabernacles.  I just scratch the surface because there are so many verses to use.  Blessing

Stephen

Lev 23:2  Tell the Israelis, "These are my feast times appointed by the LORD that you are to declare as sacred assemblies.

Lev 23:4  These are the LORD's appointed feasts, sacred assemblies that you are to declare at their appointed time.

Act 16:13  On the Sabbath day we went out the city gate and walked along the river, where we thought there was a place of prayer. We sat down and began talking to the women who had gathered there.

(Mat 26:17 NIV)  On the first day of the Feast of Unleavened Bread, the disciples came to Jesus and asked, "Where do you want us to make preparations for you to eat the Passover?"

(Acts 20:6 NIV)  But we sailed from Philippi after the Feast of Unleavened Bread, and five days later joined the others at Troas, where we stayed seven days.

1Co 5:7  Get rid of the old yeast so that you may be a new batch of dough, since you are to be free from yeast. For the Messiah, our Passover, has been sacrificed.

1Co 5:8  So let's keep celebrating the festival, neither with old yeast nor with yeast that is evil and wicked, but with yeast-free bread that is both sincere and true.

(Zec 14:16 KJV)  And it shall come to pass, that every one that is left of all the nations which came against Jerusalem shall even go up from year to year to worship the King, the LORD of hosts, and to keep the feast of tabernacles.

Eze 45:21  "'On the fourteenth day of the first month, you are to observe the Passover as a feast for seven days. Unleavened bread is to be eaten.

(Ezek 46:1 KJV)  Thus saith the Lord GOD; The gate of the inner court that looketh toward the east shall be shut the six working days; but on the sabbath it shall be opened, and in the day of the new moon it shall be opened.