True, you could read and also make several determination based on those verses to describe a characteristic or several of the Moshiach - because to be really honest with you, that’s how the qualifications were determined, and the laws of Kings for example:
Samuel established the unity between tribes and also set up a legal system to determine cases - Bet Din and the Sanhedrin (70 elders chosen in Numbers 11:14-17 to assist Moses.) Also, Samuel - was the first to anoint a king, that being Saul then David. However, it was God - himself who made the determination to chose David as a King for Israel after He rejected Saul - but it was Samuel (the prophet) who had identified and anointed the king (the prophet, was to identify the Moshiach - part of the 13 principles), the scripture read, "Now the Lord said to Samuel, “How long will you mourn for Saul, seeing I have rejected him from reigning over Israel? Fill your horn with oil, and go; I am sending you to Jesse the Bethlehemite. For I have provided Myself a king among his sons.”
Out of that passage, we know that the King was chosen from God,Judah’s authority is described as given directly by God, who then being anointed with holy oil, even in spite of the fact that the elders had approached Samuel for a king to “rule over us”
(* In the Hebrew Bible messiahs are priests and kings, who were traditionally anointed with holy anointing oil as described in Exodus 30:22-25.) Judah and the Joseph tribes both receive extensive blessings, suited to their pre-eminence, Judah’s as the major component of the Kingdom of Judah, and the Joseph tribes, in particular Ephraim, as the pre-eminent group in the Kingdom of Israel.
Also, another thought there are some movement and when speaking about the Messianic Era - have already made a determination that we are living in it, today. Would that mean that the Messiah was not to usher in an era of global peace? Was that not one of the requirement - you could be a Bnei Noach, but are you Orthodox? Which movement?
"At the head of the judiciary stands the high court which is also called the Great Sanhedrin. Its role and authority are discussed in detail in the Talmud and in halachic literature (see: Maimonides, Mishne Torah, Hilchot Sanhedrin and the beginning of Hilchot Mamrim). This is not true of the role of the king. Even though the Torah devotes six verses (Deut. 17:14-20) to the king, and the laws that govern his role are the subject of the second chapter in Tractate Sanhedrin and of chapters one and two in Maimonides’ Laws of Kings, our knowledge of this issue is still very limited.
What is the role of the king ? The Torah commands: “Appoint a king over you…”(Deut.17:15) [Note: the JPS version, “You shall be free to set a king over yourself,” is not in accord with the halachic understanding of this verse] and then goes on to tell us who is ineligible for the job - “You must not set a foreigner over you”(ibid.). Further on we read of limitations which are placed on the rights of the king: “He shall not keep many horses… he shall not have many wives… nor shall he amass silver and gold to excess”(ibid.,16-17). He is also enjoined to write a Torah scroll for himself so that it may be with him always, “So that he may learn to revere the Lord … Thus he will not act haughtily towards his fellows”(ibid., 19-20). And yet we have learned nothing of his powers or of his role."
biu.ac.il/JH/Parasha/eng/shoftim/whar.html
I think the key term here is ‘in the same manner’. You can do something in many ways, and even Christians have their own form of Sabbath observance on Sundays with attendance at Mass/church, prayer services and the like.
As far as I’ve been told as a Bnei Noach, it is important to keep Shabbat as an important day where God is on our minds first and foremost. This doesn’t need or ask for Jewish Shabbat observance, but still keeps something of the reverence of Shabbat.
You’re giving me information that I didn’t ask for - as I know this already. What I am saying is that Christians, who are following Shabbat - on a Friday, can observe it but not fully like the Jews, as the Bnei Noah should know this. So when certain Christian groups criticize others that don’t observe it - they happen to be in the wrong. These Christian groups, with a Jewish twist, are not obligated. As for being a Bnei Noah, and only being required to the seven laws, based on Noah - would know this part.
Reference:
Parashat Shoftim
The Role of the King
Dr. Ittamar Warhaftig
The Faculty of Law
biu.ac.il/JH/Parasha/eng/shoftim/whar.html