No law = no sin. The Law defines sin. It is a measurement. The Law condemns but does not save. So the world puts it aside and ignores it. But God sees all and records.
Paul penned Christ became our Sabbath ... Christians ‘rest’ (or sabbath) in Christ every day of the week and two times on Sunday ...
Matthew 5:17 pretty well answers the question,
Your claim that “no law = no sin” oversimplifies and distorts biblical truth. Yes, 1 John 3:4 says sin is lawlessness, and Romans 7:7 shows the law reveals sin. But your fixation on the Law—presumably the Ten Commandments, with the Sabbath as the centerpiece—misses the bigger picture. The Law condemns, as you admit, but it’s not the eternal yardstick you make it out to be. Galatians 3:19-25 says the Law was temporary, a guardian until Christ, who fulfills it (Matthew 5:17). Sin isn’t defined solely by the Mosaic code; it’s rebellion against God’s will, exposed by the Spirit and Scripture (John 16:8-9, Romans 2:14-15).
You say the world ignores the Law, and God records all. Sure, God sees everything (Hebrews 4:13). But you’re implying the Sabbath is the ultimate test, as if God’s judgment hinges on a day. Where’s the New Testament command for Christians to keep the seventh-day Sabbath? You won’t find it. Colossians 2:16-17 calls Sabbaths shadows of Christ, our true rest. Romans 14:5-6 gives freedom on worship days. Your legalism elevates a ritual over faith in Christ, who alone saves (Ephesians 2:8-9).
If the Law defines sin but can’t save, why cling to it over the One who does?