I think your question begs more information regarding the Sabbath and its observance. I hope this report helps you which is from a Seventh-day Adventist's perspective.
This is just a part of the article which was taken here
http://biblicalresearch.gc.adventist.org/documents/sabbathobservance.htm
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Document note: (ie..disclaimer)
It is not intended to serve as a set of ecclesiastical legislations, but instead to make available the results of exploring the elements involved in faithful Sabbath observance.
Although its work was based on careful study of the Scriptures, accompanied by the counsels of the Spirit of Prophecy, the Commission was specifically asked to address and make recommendations on how best to deal with contemporary issues that impact Sabbath observance today. Therefore the reader will find a number of quite specific recommendations that address specific matters, although many more could easily come to mind. The study was presented in the interest of encouraging worldwide unity of understanding and practice among Seventh-day Adventists, who now represent the largest Sabbath-observing faith community in the world, being present in more than 200 of the world's nations.
Sabbath ObservanceGuidelines
Purpose and Perspective
The main objective of this document on Sabbath observance is to provide counsel or guidelines to church members desiring a richer, more meaningful experience in Sabbathkeeping. It is hoped that this will provide an impetus toward a real reform in Sabbathkeeping on a worldwide basis.
Conscious of the fact that the worldwide worshiping community encounters numerous problems in Sabbath observance arising from within a given cultural and ideological context, an attempt has been made to take these difficulties into consideration. It is not the intent of this document to address every question pertaining to Sabbathkeeping, but rather to present biblical principles and Spirit of Prophecy guidelines that will assist the church members as they endeavor to follow the leading of the Lord.
It is hoped that the counsel given in the document will be helpful. Ultimately, however, decisions made under critical circumstances must be motivated by one's personal faith and trust in the Lord Jesus Christ.
SabbathA Safeguard of Our Relationship With God
The Sabbath encompasses our entire relationship with God. It is an indication of God's action on our behalf in the past, present, and future. The Sabbath protects man's friendship with God and provides the time essential for the development of that relationship. The Sabbath clarifies the relation between God and the human family, for it points to God as Creator at a time when human beings would like to usurp God's position in the universe.
In this age of materialism, the Sabbath points men and women to the spiritual and to the personal. The consequences for forgetting the Sabbath day to keep it holy are serious. It will lead to the distortion and eventual destruction of a person's relationship with God.
When the Sabbath is kept, it is a witness to the rest that comes from trusting God alone as our sustainer, as the basis of our salvation, and as the ground of our hope in the future. As such, the Sabbath is a delight because we have entered God's rest and have accepted the invitation to fellowship with Him.
When God asks us to remember the Sabbath day, He does so because He wants us to remember Him.
Principles and Theology of Sabbath Observance
Nature and Purpose of the Sabbath. The origin of the Sabbath lies in Creation when God rested from His work on the seventh day (Gen. 1-3). The Sabbath has significance as a perpetual sign of the everlasting covenant between God and His people in order that they might know who it is that created them (Ex. 31:17) and sanctifies them (Ex. 31:13; Eze. 20:12), and that they might recognize Him as the Lord their God (Eze. 20:20).
Uniqueness of the Sabbath. The Sabbath is a special occasion for worshiping God as Creator and Redeemer and as the Lord of life with whom the human family will be reunited at the Second Advent. The Sabbath commandment forms the center of the moral law as the seal of God's authority. Since it is a symbol of God's love relationship with His earthly children, human beings are obliged to respect this gift in the sense that they will do everything in their power to promote and engage in activities that will help establish and enhance a lasting relationship with God. Thus His people will engage only in those activities that are directed toward God and their fellowmen, and not in those that lean toward self-gratification or self-interest.
Universality of the Sabbath. The universality of the Sabbath is rooted in Creation. Thus its privileges and obligations are binding in all nations, sectors, or classes. (See Ex. 20:11; 23:12; Deut. 5:15; Isa. 56:1-8.) Sabbath observance pertains to all members of the household, including children, and extends even "to the stranger that is within thy gates" (Ex. 20:10).
Time Frame of the Sabbath. Biblical Data: The Sabbath starts at the end of the sixth day of the week and lasts one day, from evening to evening (Genesis 1; Mark 1:32). This time coincides with the time of sunset. Wherever a clear delineation of the time of sunset is difficult to ascertain, the Sabbathkeeper will begin the Sabbath at the end of the day as marked by the diminishing light.
Principles Guiding Sabbath Observance. Although the Bible does not deal directly with many of the specific questions we may have regarding Sabbath observance in our day, it does provide us with general principles that are applicable today. (See Ex. 16:29; 20:8-11; 34:21; Isa. 58:13; Neh. 13:15-22.)
"The law forbids secular labor on the rest day of the Lord; the toil that gains a livelihood must cease; no labor for worldly pleasure or profit is lawful upon that day; but as God ceased His labor of creating, and rested upon the Sabbath and blessed it, so man is to leave the occupations of his daily life, and devote those sacred hours to healthful rest, to worship, and to holy deeds" (The Desire of Ages, p. 207).
This concept, however, is not supportive of total inactivity. Both the Old and New Testaments invite us to care for the needs and alleviate the sufferings of others, for the Sabbath is a good day for all, particularly the lowly and the oppressed (Ex. 23:12; Matt. 12:10-13; Mark 2:27; Luke 13:11-17; John 9:1-21).
Yet even good works on the Sabbath must not obscure the chief biblical characteristic of Sabbath observance, namely, rest (Gen. 2:1-3). This includes both physical (Ex. 23:12) and spiritual rest in God (Matt. 11:28). The latter leads the Sabbath observer to seek the presence of and communion with God in worship (Isa. 48:14), both in quiet meditation (Matt. 12:1-8) and in public worship (2 Kings 4:23; 11:4-12; 1 Chron. 23:30ff.; Isa. 56:1-8). Its object is to recognize God as Creator and Redeemer (Gen. 2:1-3; Deut. 5:12-15), and it is to be shared by the individual family and the larger community (Isa. 56:1-8).
Sabbath and the Authority of God's Word. Ellen White points out that the Sabbath commandment is unique, for it contains the seal of God's law. It alone "brings to view both the name and the title of the Lawgiver. It declares Him to be the Creator of the heavens and the earth, and thus shows His claim to reverence and worship above all others. Aside from this precept, there is nothing in the Decalogue to show by whose authority the law is given" (The Great Controversy, p. 452).
The Sabbath as a sign of the Creator points to His ownership and authority. Meaningful Sabbath observance, therefore, indicates the acceptance of God as Creator and Owner, and acknowledges His authority over all creation, including oneself. Sabbath observance is based on the authority of God's Word. There is no other logical reason for it.
Human beings have the freedom to enter into a relationship with the Creator of the universe as with a personal friend.
Sabbathkeepers may have to face resistance at times because of their commitment to God to keep the Sabbath holy. To those who do not recognize God as their Creator, it seems arbitrary or inexplicable for someone to cease from all work on the Sabbath day for merely religious reasons. Meaningful Sabbath observance testifies to the fact that we have chosen to obey God's commandment. We thus recognize that our life is now lived in obedience to God's Word. The Sabbath will be a special test in the end-time. The believer will have to make a choice either to give allegiance to God's Word or to human authority (Rev. 14:7, 12).
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Finally, we are saved by grace through faith. And that means any form of work doesn't save us. However, if we know what is right and don't do it, that would be our downfall and would be cited as "evidence" of disobedience in the final judgement. So for example, not everyone has the Sabbath truth, and so if they have lived according to what they know is right, they will still be saved if they die before the Lord comes. I guess what i want to stress here is that we should live according to the knowledge given to us. If we go against that, then not even Christ's death can save you because you have
willfully disobeyed his commandments.