Genesis 2:2

God rests on the seventh day and sanctifies the Sabbath:  "And on the seventh day God ended his work which he had made; and he rested on the seventh day from all his work which he had made."

Ex. 16:4-5

The Sabbath a TEST COMMANDMENT to prove whether one will walk in God's Law or not.

Then said the LORD unto Moses, Behold, I will rain bread from heaven for you; and the people shall go out and gather a certain rate every day, that I may prove them, whether they will walk in my law, or no. (5) And it shall come to pass, that on the sixth day they shall prepare that which they bring in; and it shall be twice as much as they gather daily.

Ex. 16:23

God reveals to Israel the CORRECT DAY to keep the Sabbath after they have been in Egypt for 400 years.

And he said unto them, This is that which the LORD hath said, To morrow is the rest of the holy sabbath unto the LORD: bake that which ye will bake to day, and seethe that ye will seethe; and that which remaineth over lay up for you to be kept until the morning.

Ex. 20:8 - 11

Sabbath a part of the Decalogue, the TEN COMMANDMENTS engraved in tablets of stone by the very finger of God. Shows the Sabbath is a memorial of God's creation.

Remember the sabbath day, to keep it holy. (9) Six days shalt thou labour, and do all thy work: (10) But the seventh day is the sabbath of the LORD thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates: (11) For in six days the LORD made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.

Exodus 31:15-17

Sabbath is a SIGN of God's people. We of the faith are spiritual Israelites; children of Abraham (Gal. 3:7) 

Six days may work be done; but in the seventh is the sabbath of rest, holy to the LORD: whosoever doeth any work in the sabbath day, he shall surely be put to death. (16) Wherefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant. (17) It is a sign between me and the children of Israel for ever: for in six days the LORD made heaven and earth, and on the seventh day he rested, and was refreshed.

Deut. 5:12-15

Sabbath again included as part of the Ten Commandments. Emphasizes that the Sabbath is a day of LIBERTY.

Keep the sabbath day to sanctify it, as the LORD thy God hath commanded thee. (13) Six days thou shalt labour, and do all thy work: (14) But the seventh day is the sabbath of the LORD thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, nor thy manservant, nor thy maidservant, nor thine ox, nor thine ass, nor any of thy cattle, nor thy stranger that is within thy gates; that thy manservant and thy maidservant may rest as well as thou. (15) And remember that thou 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.

 Ezek. 20:12

Sabbath a SIGN of SANCTIFICATION

Moreover also I gave them my sabbaths, to be a sign between me and them, that they might know that I am the LORD that sanctify them.

Ezek. 20:20-23

The breaking of the Sabbath a primary reason Israel went into CAPTIVITY and was scattered. 

And hallow my sabbaths; and they shall be a sign between me and you, that ye may know that I am the LORD your God. (21) Notwithstanding the children rebelled against me: they walked not in my statutes, neither kept my judgments to do them, which if a man do, he shall even live in them; they polluted my sabbaths: then I said, I would pour out my fury upon them, to accomplish my anger against them in the wilderness. (22) Nevertheless I withdrew mine hand, and wrought for my name's sake, that it should not be polluted in the sight of the heathen, in whose sight I brought them forth. (23) I lifted up mine hand unto them also in the wilderness, that I would scatter them among the heathen, and disperse them through the countries;

Mark 1:21

Jesus Christ teaches on the Sabbath.

And they went into Capernaum; and straightway on the sabbath day he entered into the synagogue, and taught.

Luke 4:16

Jesus Christ faithfully attends the synagogue on the Sabbath as His custom or habit was. We are to walk in His steps (I Peter 1:21)

And he came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the sabbath day, and stood up for to read.

Mark 2:27-28

Sabbath was made for MAN, not just for the Jew. Jesus Christ is LORD of the Sabbath.

And he said unto them, The sabbath was made for man, and not man for the sabbath: (28) Therefore the Son of man is Lord also of the sabbath.

Matt. 24:20

Show Sabbath was still to be observed in later times.

But pray ye that your flight be not in the winter, neither on the sabbath day:

Luke 23:56

Holy Spirit inspires N.T. writer Luke to affirm that the Sabbath was still a COMMANDMENT. Luke was written around 60 AD. Almost 30 years after Christ's death.

And they returned, and prepared spices and ointments; and rested the sabbath day according to the commandment.

Heb. 4:9

There remains a SABBATISMOS (Greek-"A keeping of the Sabbath") to the people of God. The Sabbath is a picture of the rest we have in Christ and finally in His Kingdom.

There remaineth therefore a rest to the people of God.

15. Acts 13:14-15

Paul teaches in Antioch in the synagogue on the Sabbath.

But when they departed from Perga, they came to Antioch in Pisidia, and went into the synagogue on the sabbath day, and sat down. (15) And after the reading of the law and the prophets the rulers of the synagogue sent unto them, saying, Ye men and brethren, if ye have any word of exhortation for the people, say on.

Acts 13:42-44

Paul teaches to BOTH Jews and Gentile on the Sabbath.

And when the Jews were gone out of the synagogue, the Gentiles besought that these words might be preached to them the next sabbath. (43) Now when the congregation was broken up, many of the Jews and religious proselytes followed Paul and Barnabas: who, speaking to them, persuaded them to continue in the grace of God. (44) And the next sabbath day came almost the whole city together to hear the word of God.

Acts 16:12-13

Paul teaches in a strictly GENTILE area in Philipi on the Sabbath.

And from thence to Philippi, which is the chief city of that part of Macedonia, and a colony: and we were in that city abiding certain days. (13) And on the sabbath we went out of the city by a river side, where prayer was wont to be made; and we sat down, and spake unto the women which resorted thither.

Acts 17:1-4

Paul teaches on three consecutive Sabbath to Jews and Greeks.

Now when they had passed through Amphipolis and Apollonia, they came to Thessalonica, where was a synagogue of the Jews: (2) And Paul, as his manner was, went in unto them, and three sabbath days reasoned with them out of the scriptures, (3) Opening and alleging, that Christ must needs have suffered, and risen again from the dead; and that this Jesus, whom I preach unto you, is Christ. (4) And some of them believed, and consorted with Paul and Silas; and of the devout Greeks a great multitude, and of the chief women not a few.

Acts 18:1-4

Paul works six days as a tent maker and teaches in the synagogue every Sabbath.

After these things Paul departed from Athens, and came to Corinth; (2) And found a certain Jew named Aquila, born in Pontus, lately come from Italy, with his wife Priscilla; (because that Claudius had commanded all Jews to depart from Rome:) and came unto them. (3) And because he was of the same craft, he abode with them, and wrought: for by their occupation they were tentmakers. (4) And he reasoned in the synagogue every sabbath, and persuaded the Jews and the Greeks.

Isa. 56:2-7

A MILLENNIAL reference to God's Sabbath

Blessed is the man that doeth this, and the son of man that layeth hold on it; that keepeth the sabbath from polluting it, and keepeth his hand from doing any evil. (3) Neither let the son of the stranger, that hath joined himself to the LORD, speak, saying, The LORD hath utterly separated me from his people: neither let the eunuch say, Behold, I am a dry tree. (4) For thus saith the LORD unto the eunuchs that keep my sabbaths, and choose the things that please me, and take hold of my covenant; (5) Even unto them will I give in mine house and within my walls a place and a name better than of sons and of daughters: I will give them an everlasting name, that shall not be cut off. (6) Also the sons of the stranger, that join themselves to the LORD, to serve him, and to love the name of the LORD, to be his servants, every one that keepeth the sabbath from polluting it, and taketh hold of my covenant; (7) Even them will I bring to my holy mountain, and make them joyful in my house of prayer: their burnt offerings and their sacrifices shall be accepted upon mine altar; for mine house shall be called an house of prayer for all people.

Isa. 58:13-14

We are to turn away from doing our own pleasure on the Sabbath and call the Sabbath a DELIGHT.

If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the LORD, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: (14) Then shalt thou delight thyself in the LORD; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of the LORD hath spoken it.

Isa. 66:23-24

Sabbath to be kept after the time of the NEW HEAVENS and the NEW EARTH. And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith the LORD. (24) And they shall go forth, and look upon the carcases of the men that have transgressed against me: for their worm shall not die, neither shall their fire be quenched; and they shall be an abhorring unto all flesh.