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I think any text which says that the law is still valid, like for instance James 2:10-12, would prove that the Sabbath is still valid.

Hebrews 8 speaks of the law being written in the heart. This is quoting from Jer. 31. So that law mentioned in Hebrews 8 must be the same law mentioned in Jeremiah. This can only be the moral law, or 10 commandments, of which the Sabbath is a part. So that's a nice proof that the Sabbath is still in effect, since the law in written in our hearts and minds when we are converted.

The process of justification by faith is to bring the sinner into harmony with God. There are many passages which explain this. Since the law is a transcript of God's character, to bring one into harmony with God means to bring one into harmony with God's law. So it only remains to show that the law is a transcript of God's character.

One way of going about this is to compare what Scripture says about God and what Scripture says about the law (both our "truth" "righteousness" "eternal" etc.; Psalm 119 is a good reference for texts like this).

Another way of going about it is to show that righteousness is, by definition in Scripture, obedience to the moral law. Here are a couple of texts which show this:



To have the heart in the law is to know righteousness.





Putting these two texts together, we see that unrighteousness is transgression of the law, or, conversely, righteousness is obedience to the law. So "righteousness by faith" means "obedience to the law by faith." The law that we are to be obedient to is the moral law, or 10 commandments, as this is the law which is the standard of righteousness.

There is one text that proves we will always keep the Sabbath.
Isa. 66:22 "For as the new heavens and the new earth, which I will make, shall remain before me, saith the LORD, so shall your seed and your name remain. 23 And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith the LORD."

Harold

That would also prove that we are to always keep the new moon.

How about Mark 2:27 "The Sabbath was made for man, not man for the Sabbath."

People say the Sabbath was given to the Jews in the wilderness. But that text says the Sabbath was created for mankind.

How about:
Therefore a Sabbath Rest Remains for the people of God. (Hebs. 4:9)

The Sabbath continues. The verb "remains" is "(apoleipetai) which literally means "has been left."
The Greek word translated "rest" in every other passage throughout Hebrews 3 and 4 is "katapausis." The word for "rest" in Hebrews 4:9 is (sabbatismos). The term (sabbatismos) is seen in the writings of Plutarch, Justin, Epiphanius, and others, and each time the term denotes the observance of the Sabbath. Therefore the text is saying, that Sabbath obsevance remains for the people of God.

Does the law still valid?

Christ is the end of the law

On the cross he ended the law of Moses.

A new law was given to Christianity, the law of love.

Why does we say, the Ten Commandments still continue and didn't end at the cross?

Torah consist of 613 mitzvoh, all has been nailed to the cross, is there any text saying that the Ten Commandments is an exception? Does the Jews realize that there are two laws in the Old Testament, same as SDA's view of the law?

In His love

People of nowadays says "from Sunday to Sunday or from Monday to Monday to indicate a period of time of a full week. It tells us a rotation of time, a period of 7 days.

In His love