5. Isn’t John 20:19 the record of the disciples instituting Sunday keeping in honor of the resurrection?
No. The disciples at this time did not believe that the resurrection had taken place. They had met there “for fear of the Jews.” When Jesus appeared in their midst, He rebuked them “because they did not believe those who had seen Him after He had risen” (Mark 16:14). There is no implication that they counted Sunday as a holy day. Only eight texts in the New Testament mention the first day of the week, and none of them implies that it is holy.
6. Doesn’t Colossians 2:14–17 do away with the seventh-day Sabbath?
Not at all. It refers only to the annual, ceremonial sabbaths that were “a shadow of things to come” and not to the seventh-day Sabbath. There were seven yearly holy days, or festivals, in ancient Israel that were also called sabbaths (see Leviticus 23). These were in addition to, or “besides the Sabbaths of the Lord” (Leviticus 23:38), or seventh-day Sabbath. Their main significance was in foreshadowing, or pointing to, the cross and ended at the cross. God’s seventh-day Sabbath was made before Adam’s sin, and therefore could foreshadow nothing about deliverance from sin. That’s why Colossians 2 differentiates and specifically mentions the sabbaths that were “a shadow.”
7. According to Romans 14:5, isn’t the day we keep a matter of personal opinion?
Notice that the whole chapter is on judging one another (verses 4, 10, 13) “over doubtful things” (verse 1). The issue here is not over the seventh-day Sabbath, which is a part of the moral law, but over other religious days. Jewish Christians were judging Gentile Christians for not observing them. Paul is simply saying, “Don’t judge each other. That ceremonial law is no longer binding.”
Let The World Know The Sabbath 