Sounds like a commandment given to a specific people to do specific things.
It is. It is given to those who belong to YHWH, to be honored forever, as it is written.
Yep, the Jews did this. It was commanded of them. I agree. So?
Do you believe that YHWH's word is only for the tribe of Yahudah?
The mistake you're making is the distinction between the Law of Moses, with all its ceremonial requirements and such, and the Law written upon our hearts today. Remember what Peter said about circumcision as commanded to be passed on through Abraham, and the Law of Moses:
Act 15:10 KJV - Now therefore why tempt ye God, to put a yoke upon the neck of the disciples, which neither our fathers nor we were able to bear?
It's difficult to understand The writings of Yahshua's Apostles; without understanding the TaNaK.
Abraham came to belief before he showed the sign. To be circumcised before coming to belief is putting the cart before the horse.
Not unlike Baptism, Circumcision is a ceremonial outward sign of what has taken place within. I absence of the inward change, the outward sign means nothing.
You are totally free to try and wear that yoke of the letter, which is death, upon your neck.
Following in the obedience of YHWH's eternal Torah, on the footsteps of Yahshua, is what brings us to Yahshua.
(CLV) Ga 3:24
So that the law has become our escort to Christ, that we may be justified by faith.
If we believe his words, which are his Father's words, our actions will reflect his example of obedience to his Father's instructions.
Have you found another way?
As a Gentile follower of Christ Jesus,
That's an oxymoron. Yahshua was commissioned for none but Israel. If we follow Yahshua; we follow his example of obedience to his Father's word. We care then grafted into the tree of Israel.
YHWH's covenant is with Israel.
within whom is the Law Giver who has written within my heart His Law that applies to modern followers of Christ, the particulars of ceremony and feasts no longer are a part of what He seeks out from us. If you feel that He has laid that upon you, then I would have to say that I'm glad I'm not you, to have to bear that yoke.
YHWH's Moedim are for all generations. He told this to the mixed multitude the nations, the Gentiles, the Goyim who were entering his covenant.. If YHWH has written HIS law on your heart; how could you not have known that this is what he wrote down for Moses?
Paul told his converted disciples to keep the Moedim.
“Therefore let us keep the feast, not with the old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth. 1 Cor. 5:8
Yeshua said in Mat 11:30 KJV - For my yoke [is] easy, and my burden is light.
Yahshua spoke his Father's words. This is nothing new. YHWH told Moses the same thing.
(CLV) Dt 30:10
when you hearken to the voice of Yahweh your Elohim to observe His instructions and His statutes, the ones written in this scroll of the law, once you return to Yahweh your Elohim with all your heart and with all your soul.
(CLV) Dt 30:11
For this instruction that I am enjoining on you today, it is neither too difficult for you, nor is it too far off.
(CLV) Dt 30:12
It is neither in the heavens for you to say: Who shall ascend to the heavens for us and take it for us and announce it to us that we may do it?
(CLV) Dt 30:13
Nor is it across the sea for you to say: Who shall cross across the sea for us and take it for us and announce it to us that we may do it?
(CLV) Dt 30:14
For the word is exceedingly near to you, in your mouth and in your heart, to do it.
(CLV) Dt 30:15
See! I have set before you today life and good, death and evil.
(CLV) Dt 30:16
If you should hearken to the instructions of Yahweh your Elohim that I am enjoining on you today, to love Yahweh your Elohim, to walk in His ways and to observe His instructions, His statutes and His ordinances, then you will live and multiply, and Yahweh your Elohim will bless you in the land where you are entering to tenant it.
The Torah is our escort to Yahshua.
Peter therefore made that very distinction between the Law of Moses and the Law that Yeshua writes in our hearts.
Peter said no such thing. YHWH said that he will write his Torah on our hearts. We can't corrupt his written word; and say that he has written it on our hearts.
(CLV) Jer 31:33
For this is the covenant which I shall contract with the house of Israel after those days,
averring is Yahweh:
I will put My law within them, And
I shall write it on their heart; I will become their Elohim, And they shall become My people.
He didn't say that he would write a new law on our hearts. YHWH's Torah is his nature. YHWH doesn't change. If the law is written our our hearts; and we are followers of Yahshua; then we have a heart for the Torah that Yahshua preached throughout his ministry, the Torah for which he was obedient to, unto death.