Until then we are to "Remember the Sabbath Day to keep it Holy". And it was created for us as a sign between us and God. And the Word which became Flesh reminded us of it's importance through Isaiah.
Is. 58:13 If thou turn away thy foot from the sabbath,
from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the LORD, honourable;
and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking
thine own words:
14 Then shalt thou delight thyself in the LORD; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of the LORD hath spoken
it.
God Sabbath is about Loving and Honoring Him. The First and greatest Commandment.
Jesus promised:
23 Jesus answered and said unto him,
If a man love me,
he will keep my words: and my Father will love him, and we will come unto him,
and make our abode with him.
Many believe in a god who didn't not say these things.
Jer. 6:16 Thus saith the LORD, Stand ye in the ways, and see, and ask for the old paths, where
is the good way,
and walk therein,
and ye shall find rest for your souls.
But they said,
We will not walk therein.
The Bible certainly teaches we are to separate ourselves unto God and His Word, not the word of religious man. And there can be no doubt the Bible teaches were are to honor HIS Sabbath.
Man? No, man does not teach this, but the Word of God most certainly does.