There are lots of ways and God's Word tells us. I wrote this before but here it is again
There are lots of ways of keeping the Sabbath day holy as shown in the bible.
This is how it was consistently kept all throughout scriptures
Exo 20:8 “Remember the Sabbath day, to keep it holy. 9 Six days you shall labor and do all your work, 10 but
the seventh day is the Sabbath of the Lord your God.
In it you shall do no work: you, nor your son, nor your daughter, nor your male servant, nor your female servant, nor your cattle, nor your stranger who
is within your gates.
The point of the Sabbath is to put all secular works aside and focus on Jesus. He says the Sabbath is a delight! How can it not be spending time with God on the day He set aside from Creation. Exo 20:11
Isa 58:13
If you turn away your foot from the Sabbath,
From doing your pleasure on My holy day,
And call the Sabbath a delight,
The holy
day of the Lord honorable,
And shall honor Him, not doing your own ways,
Nor finding your own pleasure,
Nor speaking
your own words,
Then you shall delight yourself in the Lord;
And I will cause you to ride on the high hills of the earth,
And feed you with the heritage of Jacob your father.
The mouth of the Lord has spoken.”
The Sabbath is a holy convocation i.e. holy gathering like in Chruch
Lev 23:3 ‘Six days shall work be done,
but the seventh day is a Sabbath of solemn rest, a holy convocation. You shall do no work
on it; it
is the Sabbath of the Lord in all your dwellings.
Did this change in the New Testament?
Not by Jesus
Luke 4:16 So He came to Nazareth, where He had been brought up. And as His custom was, He went into the synagogue on the Sabbath day, and stood up to read. 17 And He was handed the book of the prophet Isaiah.
Did it change after the Cross?
Acts 13:42 So when the Jews went out of the synagogue, the Gentiles begged that these words might be preached to them the next Sabbath.
Acts 13:44 On the next Sabbath almost the whole city came together to hear the word of God.
Acts 15:21 21 For Moses has had throughout many generations those who preach him in every city, being read in the synagogues every Sabbath.”
Acts 18:4 And he reasoned in the synagogue every Sabbath, and persuaded both Jews and Greeks.
Not by the apostle's
Does it change in the New Heaven and New Earth
Yes. Only because now instead of worshipping Christ in spirit, the saints will be in His physical presence, but the Sabbath remains just as what was promised.
Isa 66:23 “For as the new heavens and the new earth
Which I will make shall remain before Me,” says the Lord,
“So shall your descendants and your name remain.
23 And it shall come to pass
That from one New Moon to another,
And from one Sabbath to another,
All flesh shall come
to worship before Me,” says the Lord.
Christ blesses us when we keep the Sabbath and only He can reverse His blessing Num 23:20
Isa 56:2
Blessed is the man who does this,
And the son of man
who lays hold on it;
Who keeps from defiling the Sabbath,
And keeps his hand from doing any evil.”
Without His blessing we are nothing
Rev 22:14
Blessed are those who do His commandments, that they may have the right to the tree of life, and may enter through the gates into the city.