Heb 4:1 Therefore, let us fear lest, while a promise remains of entering His rest, any one of you should seem to have come short of it.
2 For indeed we have had good news preached to us, just as they also; but the word they heard did not profit them, because it was not united by faith in those who heard.
3 For we who have believed enter that rest, just as He has said, "AS I SWORE IN MY WRATH, THEY SHALL NOT ENTER MY REST," although His works were finished from the foundation of the world.
4 For He has thus said somewhere concerning the seventh [day,] "AND GOD RESTED ON THE SEVENTH DAY FROM ALL HIS WORKS";
5 and again in this [passage,] "THEY SHALL NOT ENTER MY REST."
6 Since therefore it remains for some to enter it, and those who formerly had good news preached to them failed to enter because of disobedience,
7 He again fixes a certain day, "Today," saying through David after so long a time just as has been said before, "TODAY IF YOU HEAR HIS VOICE, DO NOT HARDEN YOUR HEARTS."
8 For if Joshua had given them rest, He would not have spoken of another day after that.
9 There remains therefore a Sabbath rest for the people of God.
10 For the one who has entered His rest has himself also rested from his works, as God did from His.
This subject matter of Hebrews is set forth and evident from the very beginning of Hebrews -
Heb 2:5 For unto the angels hath he not put in subjection the world to come, whereof we speak.
Heb 6:5 And have tasted the good word of God, and the powers of the world to come.
It is also clear from the author of Hebrews that the "rest" of which the Sabbath is a shadow of has not yet come, for by scripture we can see that it fulfilled in "the world to come," therefore we are instructed two fold - Let us therefore fear . . . Let us labor therefore . . .
Heb 4:1 Let us therefore fear, lest, a promise being left us of entering into his rest, any of you should seem to come short of it.
Heb 4:11 Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief.
Eph 6:5 Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as unto Christ;
Php 2:12 Wherefore, my beloved, as ye have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling.
Yet today every one just wants to be let alone to rest and do what so ever they feel is right . . .
How is it the church today has forgotten to fear, or for that matter even teach against fearing God. I had one lady who actually told me she was delivered from the fear of God, can you imagine that? Is it that they think they have perfected their love for God already and have no need of fear, or to be working out their salvation? Is it because they feel all they need to do is "believe" and that they don't really need to pray that they may be found worthy?
Yet we are told by Jesus very clearly -
Lu 21:36 Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.
Since we are still awaiting the inheritance of the saints to be fulfilled in "the world to come . . . "
Heb 4:9 (KJV) There remaineth therefore a rest to the people of God.
Heb 4:9 (NASB) There remains therefore a Sabbath rest for the people of God.
Heb 4:9 (NIV) There remains, then, a Sabbath-rest for the people of God;
Heb 4:9 (NRSV) So then, a sabbath rest still remains for the people of God;
Heb 4:9 (RSV) So then, there remains a sabbath rest for the people of God;
Heb 4:9 (ASV) There remaineth therefore a sabbath rest for the people of God.
Heb 4:9 (NAS95) So there remains a Sabbath rest for the people of God.
Heb 4:9 (BBE) So that there is still a Sabbath-keeping for the people of God.
Heb 4:9 (WEB) There remains therefore a Sabbath rest for the people of God.
Heb 4:9 (DBY) There remains then a sabbatism to the people of God.
Heb 4:9 (YLT) there doth remain, then, a sabbatic rest to the people of God,
Heb 4:9 (NKJV) There remains therefore a rest for the people of God.
Heb 4:9 (MKJV) So then there remains a rest to the people of God.
Heb 4:9 (MNT) So there remains a Sabbath Rest for the people of God.
Heb 4:9 (Oracl) There remains, therefore, a divine rest for the people of God.
Heb 4:9 (TCNT) There is, then, a Sabbath-Rest still awaiting God's People.
Heb 4:9 (WNT) It follows that there still remains a sabbath rest for the people of God.
Keeping the Sabbath is a prophetic exercise and responsibility of the saints, that they believe in the promise of God. It is meant to be a perpetual sign of their covenant relationship with God . . . not unlike an engagement ring.