Elder Corbin Clarke from King's Way Bible Church in Avon, Indiana calls Seventh-day Adventists ‘weird’ for keeping the seventh-day Sabbath (32:30).
He also attempts to define Sun-day as the Sabbath day. Our commentary is below this video.
Commentary
Sun-day is not the Sabbath day. The seventh-day of creation is the Sabbath Day. It matters to us because it matters to God (Exodus 20:8-11; Matthew 24:20).
Anyone who has studied the Post-Nicene and Ante-Nicene writings, and similar source material will notice a couple things. First, there are numerous references that indicate Sun-day observance originated not in Jerusalem, but rather 2000 miles away in the city of Rome. Also, that it was introduced in a climate of controversy, owing to a desire of Christians to force a break with Judaism around the time of Hadrian. Strong anti-Judaic emotions abound, and account for the noticeable polemic surrounding the issue, and some of the absurd and fantastic arguments used by the "Fathers" to promote Sunday, and disregard the Sabbath. If such a change had been attempted prior to A.D. 70, the Jerusalem council in Acts 15 would have had a far different agenda. Scripture would have been full of the controversial aftermath.
Yes, there are references to Sun-day observance in the 3rd and 4th centuries. However, the motivating factors are found in the political, pagan, and social arenas, rather than in the theological. And, by the authority of the church at Rome, rather than by the authority of Jesus or the Apostles.
I would like to find one reference of Sunday observance by Christianity prior to A.D. 100. Also, find one prior to 135 AD. other than in Rome, or Alexandria. To my knowledge, they don’t exist.
The first references of Sunday observance in 157 AD. are timid, and without a common reason given for observance. The resurrection of Christ is not offered as the primary motivation until the 4th century. As one of the motivations, but never the primary one, at first. Something's wrong here.
The Jerusalem Christian community, fled the city in A.D. 70, to Pella. The Nazarene sect in and around Pella, therefore, represents the direct descendants of the primitive community of Jerusalem. In spite of Epiphanius' attempt to denigrate them as "heretics" in the rather extensive account that he gives on their beliefs, there is nothing heterodoxial about them. He identifies them with the Jews for using the same Old Testament books (hardly a heresy). I believe that the Nazarenes represent the survival of both the ethnic and theological legacy of primitive Jewish Christianity. The fact that they retained Sabbath-keeping as one of their distinguishing marks, shows persuasively that this was the original day of worship of the Jerusalem Church, and that no change from Sabbath to Sunday occurred among Palestinian Jewish Christians after the destruction of the city.
The attempt to define Sunday as the replacement of the Sabbath day is without Scriptural support. The Bible presents the Sabbath as the seventh-day memorial of Creation and a weekly reminder of the rest that we found in Jesus the Christ’s redemptive and healing work in our lives.
The seventh-day Sabbath reminds us to rest in the work of God for our redemption, and cease from our own efforts to produce righteousness. It is a beautiful gift to mankind, a sign of mutual belonging between our Creator & Redeemer and us (Acts 13:44; Isaiah 58:13-14).
Sun-day is a fitting example of man’s attempts to sanctify himself. It is a collection of human effort and pagan wisdom, bequeathed to our world from the little horn power identified in Scripture (Daniel 7:8—25; Isaiah 66:17).
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“Remember the Sabbath day, to keep it holy” (Ex. 20:8).