That text doesn't say as you think or wish in respect to the Sabbath.
Yes it refers to any Sabbath, any special day, even your favorite one.
The context of the passage isn't the Lords will in our lives but arguing over our own opinions and surmising.
Its rather simple. And it is very much like the "Sermon on the Mount" in Matthew.
The kingdom people should be strict towards themselves yet merciful towards others.
The kingdom people should realize to whom thier ultimate accountability is -to Christ.
Who are you who judge another’s household servant? To his own master he stands or falls; and he will be made to stand, for the Lord is able to make him stand.(Rom. 14:4)
Compare:
Do not judge, that you be not judged.
For with what judgment you judge, you shall be judged; and with what measure you measure, it shall be measured to you.(Matt. 7:1,2)
See verse 1 and 2 which verse 5 is in context to. Nowhere does it state in the Torah we are to only eat Vegetables or herbs. They were arguing over opinions. As it states in verse 1. Which sets the context.
It doesn't matter where the Torah instructed or the Torah did not instruct.
This is forcing something into Paul's advice to artificially convey your own preferences.
Your
practice in diet,- be persuaded in your own heart and receive in the church life others who may differ in practice.
The same principle applies to keeping
a special day - whether Torah based or non-Torah based.
Rom 14:1 (NET) Now receive the one who is weak in the faith, and do not have disputes over differing opinions.
That is right. In the assembly life, like a family, there will be some stronger in faith and some weaker.
All should be GROWING. Not all are at one time at the same level of strength of faith.
So the churching people must be loving, tolerant, and non-judgmental of each other.
Rom 14:2 One person believes in eating everything, but the weak person eats only vegetables.
As I said before. To establish the principle Paul uses two representative examples.
One of diet is given. And another of special days is given.
"Context of fasting " arguments and
"But the Torah didn't say this or that" arguments are SDA's own flimsy rationales.
The first one to suffer because of this special munipulating of the text, is yourself.