Why Aren't Christians Bound by the Saturday Sabbath?

The answer to this gets into a broader question of the relationship between the relationship between the Law of Moses and the New Covenant. The short answer is this: Christ fulfilled the Law. None of the Law is binding simply by virtue of being the Law. Instead, here's what we're bound to follow (from Matthew 22:36-40):

“Teacher, which is the greatest commandment in the Law?”
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Jesus replied: “‘Love the Lord your God with all your heart and with all your soul and with all your mind.’ This is the first and greatest commandment. And the second is like it: ‘Love your neighbor as yourself.’ All the Law and the Prophets hang on these two commandments.”
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Those are the two commandments that we Christians have to live out. So some of the moral rules and restrictions found in the Law are still in effect: not because they're Law, but because they're necessary for living out a life of love of God and love of neighbor. This necessarily means that the prohibition against murder is treated very differently than, say, the prohibition against wearing wool and linen at the same time (Deuteronomy 22:11).

There's much more that can be said on that topic, but like I said, that's a bit complex. So let's look at the simpler question: what happens to the Sabbath. And here's the answer that the Scriptures give.

(1) Sabbath Observance is No Longer Binding​

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