Where do you find this theory expounded upon in scipture?
Where in the NT does it say "Thou only hast to do what it says to do in the old testament if it is remphasized in the the new testament"?
And if that's your theory, then here:
1Co 5:7 Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us:
1Co 5:8 Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.
Here:
Act 20:16 For Paul had determined to sail by Ephesus, because he would not spend the time in Asia: for he hasted, if it were possible for him, to be at Jerusalem the day of Pentecost.
1Co 16:8 But I will tarry at Ephesus until Pentecost.
Act 2:1 And when the day of Pentecost was fully come, they were all with one accord in one place.
Act 18:21 But bade them farewell, saying, I must by all means keep this feast that cometh in Jerusalem: but I will return again unto you, if God will. And he sailed from Ephesus.
1Co 5:8 Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.
The feasts of God are "reemphasied" in the NT. You should be keeping them if that's your criteria.
The time for the fulfillment of this prophecy is not yet.
Your position is that the holy days were part of the old covenant and not valid for Christians. So why exactly do you suppose God would require ALL nations to observe the feast of tabernacles in the future?
That's a rhetorical question. The answer is that you have a flawed understanding of scripture. God shows that this holy days are kept in the future BECAUSE they are to be kept here and now. God didn't invent pagan inspired holidays to supplant his holy days. Man did. That's why they were kept by all those who believe in God in the old testament, the new testament, today and tomorrow.
Note that when this prophecy comes to pass ... that the nations shall go up to Jerusalem ... to keep the feasts of tabernacles.
Even the feast-keepers are not currently doing this.
That's exactly right because feast keepers have not yet been commanded to come to Jerusalem to keep the feast.
As I said in the previous thread, those commands to the Israelite people which the Gentiles are to keep ... are re-emphasized in the NT. There is ample NT teaching admonishing christians not to steal, murder, revel, get drunk, covet, etc.
Where do you find this theory expounded upon in scipture?
Where in the NT does it say "Thou only hast to do what it says to do in the old testament if it is remphasized in the the new testament"?
The Jerusalem council is a prime example.
Also ...Colossians 2:16 Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days:1Co 5:7 Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us:
17 Which are a shadow of things to come; but the body is of Christ.
1Co 5:8 Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.
I've taken a look at the context of these verses, ... and it is clear that Paul is speaking on keeping one's life pure from sin, and full of the characteristics that God calls us to (i.e. sincerity and truth).
The context does not speak to physical feasts.
Note that when this prophecy comes to pass ... that the nations shall go up to Jerusalem ... to keep the feasts of tabernacles.
Even the feast-keepers are not currently doing this.
That's exactly right because feast keepers have not yet been commanded to come to Jerusalem to keep the feast.
And the church has not been commanded to keep these feasts.