Paul again speaks out against these former rituals.
Yet what has happened now is the former feast days and such have been replaced by other by various denominations.
You noted you keep these Festivals.
On the Day of Atonement do you offer a sacrifice?
When you celebrate the Passover do you prepare the same meal prescribed by the Law and do you sacrifice an animal and sprinkle the blood on your door posts?
I'm sorry, but you have been deceived about this as well. In Galatians the situation is much as same. "Days and months and seasons and years" are NOT God's holy days. There is a specific word, heorte, always used to refer to God's holy days. By the same token Sabbaton is usually used to refer to the sabbaths of Jesus our Lord. These words are NOT used here.
Verse 8 gives more context:
Gal 4:8 But then, indeed, when you did not know God, you served those which by nature are not gods.
The people he is referring to were again pagans at one time and now were Christians. Formerly, they did not serve God.
Also Paul did NOT think that God's law was a "weak and beggarly element". After all he said this:
Romans 7:12 Therefore the law is holy, and the commandment holy and just and good.
Paul knew that God's laws had purpose and meaning. The weak and beggarly elements were the pagan practices they wanted to return to.
In this congregation there was also the problem of Jewish Christians (those that came from the Jewish faith) insisting that pagan Christians had to be circumcised and keep other elements of the Jewish religion and rites of the old covenant. Paul went through great lengths in the book of Hebrews to explain that the new covenant meant that the Levitical priesthood and the practices of priesthood were replaced by Christ. Paul was also dealing with extrabiblical idea inserted into the Jewish religion that were influencing congregants as well.
Yet what has happened now is the former feast days and such have been replaced by other by various denominations.
They never were. Again, there is clear and unmistakeble traidtional church history that shows when and why these why the Lord Jesus Christ's holy days were replaced. It had everything to do with Rome's hatred Jews and early Christians not wanting to be seen as "Jews". They took the cowardly way out and abandoned God's days.
You noted you keep these Festivals.
On the Day of Atonement do you offer a sacrifice?
When you celebrate the Passover do you prepare the same meal prescribed by the Law and do you sacrifice an animal and sprinkle the blood on your door posts?
Why do you think the festivals are part of the old covenant? Let's get that out the way and then I'll explain how the holy days apply under the new covenant.