Chancer!
Hebrews 4:9 - So there remains a Sabbath rest for the people of God. (NASB) Notice that the Greek word "sabbatismos" here is used nowhere else in the Bible.
W. E. Vine, Greek Dictionary points out:
Sabbath rest (4520) (sabbatismos from sabbatízo = keep the Sabbath) literally means a keeping of a sabbath or a keeping of days of rest. It is used in this passage not in the literal sense (meaning to keep a specific day, the "Sabbath" day) but to describe a period of rest for God’s people which is modeled after and is a fulfillment of the traditional Sabbath.
SABBATISMOS a Sabbath-keeping, is used in Heb. 4:9, R.V., "a Sabbath rest," A.V. marg., "a keeping of a Sabbath" (akin to sabbatizoµ, to keep the Sabbath, used, e.g., in Ex. 16:30, not in the N.T.); here the Sabbath-keeping is the perpetual Sabbath rest to be enjoyed uninterruptedly by believers in their fellowship with the Father and the Son, in contrast to the weekly Sabbath under the Law.
Because this Sabbath rest is the rest of God Himself, its full fruition is yet future, though believers now enter into it. In whatever way they enter into divine “rest,” that which they enjoy is involved in an indissoluble relation with God. (Vine's Expository Dictionary of New Testament Words)
Hope you are not colour blind, but everything in red is YOUR ADDITION TO THE WORD OF GOD. To such as add to God's Word - says God through the Written Law of His Word, shall be added the plagues of God's judgments.
I'm neither color blind nor spiritually blind. (1 Corinthians 2:11-14) Nothing has been added, just properly interpreted in context. That nasty mean-spirited judgment call you made exposes your heart and is also well above your paygrade! You are not my judge.
Notice that the Greek word "sabbatismos" is used
nowhere else in the Bible! Amazing that Sabbatarians would suggest that this is the word for "keeping the weekly Sabbath" when it is never used anywhere else, in spite of the many references to Jews keeping the weekly Sabbath in the New Testament!
W. E. Vine, Greek Dictionary on "Rest" proves the Sabbatarian argument wrong:
A2. KATAPAUSIS (2663), in classical Greek, denotes a causing to cease or putting to rest; in the N.T., rest, repose; it is used (a) of God's rest, Acts 7:49; Heb. 3:11, 18; 4:1, 3 (twice), R.V. (1st part), "that rest" (the A.V., "rest," is ambiguous), 5, 11; (b) in a general statement, applicable to God and man, 4:10.
A4. SABBATISMOS (4520), a Sabbath-keeping, is used in Heb. 4:9, R.V., "a Sabbath rest," A.V. marg., "a keeping of a Sabbath" (akin to sabbatizoµ, to keep the Sabbath, used, e.g., in Ex. 16:30, not in the N.T.); here the Sabbath-keeping is the perpetual Sabbath rest to be enjoyed uninterruptedly by believers in their fellowship with the Father and the Son, in contrast to the weekly Sabbath under the Law. Because this Sabbath rest is the rest of God Himself, 4:10, its full fruition is yet future, though believers now enter into it. In whatever way they enter into Divine rest, that which they enjoy is involved in an indissoluble relation with God.
B2. KATAPAUO (2664), akin to A, No. 2, used transitively, signifies to cause to cease, restrain, Acts 14:18; to cause to rest, Heb. 4:8; intransitively, to rest, Heb. 4:4, 10. See Cease, A, No. 6, Restrain.
Hebrews 4:10 says the one who has entered His rest has himself also rested from his works, as God did from His. Believers have entered in God’s rest through Jesus (in contrast with law keeping) as God ceased or rested from His works in the seventh day of Creation. God's ultimate, true rest did not come through Joshua or Moses, but through Jesus Christ. Joshua led Israel into the promised land, which was merely the earthly rest which was but a shadow of what was involved in the heavenly rest. The rest in Christ that God offers is spiritual and is superior to that which Joshua obtained. Israel's earthly rest was filled with conflict and attacks from their enemies and the daily cycle of work. The
"sabbatismos" rest (Hebrews 4:9) enjoyed uninterruptedly by believers in their fellowship with the Father and the Son is in contrast with keeping the weekly Sabbath day under the Law.
Although for centuries the Jews had found their physical rest in a day, the New Covenant takes the focus off the shadows of the Old Testament signs and rituals and reveals their spiritual substance --
the fulfillment/reality—in the person of Jesus Christ. (Colossians 2:16-17) Christians find complete Sabbath "sabbatismos" rest in Christ's finished work on the cross. The New Testament Sabbath rest is entered into by ceasing from one’s "works" of trying to earn salvation though keeping the Law. Paul explains that the Jewish holy days, including the weekly Sabbath, were merely a “shadow” which pointed to Christ; therefore, Christians should not feel obligated to observe them once the “reality” has come. (Colossians 2.16-17) Because Jesus and the New Testament writers never reiterate the Sabbath command as they do the moral principles contained in the other 9 commandments, Christians are not obligated to observe a literal weekly Sabbath day.