All "Moral" or "Natural" Commandments in the Law of Moses are indeed binding on Christians...
...Man is commanded by nature to honor God (god's) & dedicate some type to worship.
...Man was never commanded by nature or set aside a specific time to do this.
Thus, the 3rd Commandment is moral as far as every culture has set aside time to honor it's Deities...
...The Sabbath Commandment required knowledge of it to be communicated supernaturally.
....Like the Day of Atonement, New Moons, Passover, etc. AT SPECIFIC TIMES.
This makes the TIMING ceremonial and subject to change.
The other thing that appears to have been missed by those who adhere to Ellen White's interpretation is that all the examples given of the Apostles going to the Temple or Synagogue are NOT examples of Christian Assembly or Worship. These are only examples of Christians spreading the Gospel where Jew's gathered in mass.
Saint Paul was explicit that Christians were to "ASSEMBLE THEMSELVES TOGETHER".
Hebrews 10, 20
By a new and living way, which he hath consecrated for us, through the veil, that is to say, his flesh; And having an high priest over the house of God; Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water. Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;) And let us consider one another to provoke unto love and to good works: Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching. For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins, But a certain fearful looking for of judgment and fiery indignation, which shall devour the adversaries.
It is unlawful in Judaism to have "a collection" on the Sabbath...
...It's was the same way back then - at the time of the Apostles.
...Scripture is CLEAR that Christians assembled themselves together.
ON THE 1st DAY OF THE WEEK.
1st Corinthians 16, 1 - 3
That's the day the Christians assembled themselves together. Notice also that this isn't a request - it's an Apostolic COMMAND.
Furthermore Scripture is explicit that the assembly above WAS specifically Christian Worship.
1st Corinthians 11, 17
Now in this that I declare unto you I praise you not, that ye come together not for the better, but for the worse.
18 For first of all, when ye come together in the church, I hear that there be divisions among you; and I partly believe it.
19 For there must be also heresies among you, that they which are approved may be made manifest among you.
20 When ye come together therefore into one place, this is not to eat the Lord's supper.
21 For in eating every one taketh before other his own supper: and one is hungry, and another is drunken.
22 What? have ye not houses to eat and to drink in? or despise ye the church of God, and shame them that have not? what shall I say to you? shall I praise you in this? I praise you not.
23 For I have received of the Lord that which also I delivered unto you, that the Lord Jesus the same night in which he was betrayed took bread:
24 And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me.
25 After the same manner also he took the cup, when he had supped, saying, this cup is the new testament in my blood: this do ye, as oft as ye drink it, in remembrance of me.
26 For as often as ye eat this bread, and drink this cup, ye do shew the Lord's death till he come.
27 Wherefore whosoever shall eat this bread, and drink this cup of the Lord, unworthily, shall be guilty of the body and blood of the Lord.
28 But let a man examine himself, and so let him eat of that bread, and drink of that cup.
29 For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body.
The above would NOT have been done in a Synagogue OR on the Sabbath for the simple fact practicing Jews didn't take up a collection on the Sabbath, period.
Christians meeting on Sunday is of Apostolic origin and claiming otherwise is simply an old anti-Trinitarian teaching.