Point 2: The Menorah of the Beit HaMidash had only 6 branches all connected to one stand tied into a base. There wasn't seven branches, four on one side or four on the other. "32 And six branches are running out from its sides, three branches of the lampstand from its one side and three branches of the lampstand from its other side. 33 Three cups shaped like flowers of almond are on the one set of branches, with knobs and blossoms alternating, and three cups shaped like flowers of almond on the other set of branches, with knobs and blossoms alternating. This is the way it is with the six branches running out from the lampstand." (Shemot 25:32-33) Okay, Eda... Do you overstand now?
If you keep reading you'll see that there were 7 lamps. It would have been 6 on the branches, and 1 on the shaft itself:
Exodus 25:37
37. And you shall make its lamps seven, and he shall kindle its lamps [so that they] shed light toward its face.
Point 5: According to the Almighty, "You shall not add to the law which I command you, not shall you diminish from it" (Davarim - 4:2). "All that I command you, you shall diligently do; you shall not add to it nor diminish from it" (Davarim - 13:1) "Do not add to His words, lest He rebuke you and you be found a liar". (Mishlei - 30:6). Yet Rashi is correct in stating not to add extra in the mitzvah's, for in the days ahead HaShem will complete his Torah. Only through the name of Jeh0vah alone can laws be created.
Correction, LuniSolar.... "There was not a word of all that Moses commanded, which Joshua READ not before all the assembly of Israel, and the women, and the little ones, and the strangers that walked among them." (Yehoshua 8:35)
Joshua also wrote his own ordinance with the Torah:
Joshua 24:25-26
25. And Joshua made a covenant with the people that day, and set them a statute and an ordinance in Shechem.
26. And Joshua wrote these words in the book of the law of G-d, and took a great stone, and set it under the doorpost which is in the sanctuary of the Lord.
Also, if you say no holidays can be commemorated unless they are in the Pentateuch, you would have to throw out the book of Esther, which says this about Purim:
Esther 9:20-28
20. And Mordecai inscribed these things and sent letters to all the Jews who were in all the provinces of King Ahasuerus, both near and far, כ.
21. to enjoin them to make the fourteenth day of the month of Adar and the fifteenth day thereof, every year, כא.
22. as the days when the Jews rested from their enemies, and the month that was reversed for them from grief to joy and from mourning to a festive day-to make them days of feasting and joy, and sending portions one to another, and gifts to the poor. כב.
23. And the Jews took upon themselves what they had commenced to do and what Mordecai had written to them. כג.
24. For Haman the son of Hammedatha the Agagite, the adversary of all the Jews, had devised to destroy the Jews, and he cast the pur-that is the lot-to terrify them and destroy them. כד.
25. And when she came before the king, he commanded through letters that his evil device that he had devised against the Jews return upon his own head, and to destroy him and his sons on the gallows. כה.
26. Therefore, they called these days Purim after the name pur; therefore, because of all the words of this letter, and what they saw concerning this matter, and what happened to them. כו.
27. The Jews ordained and took upon themselves and upon their seed and upon all those who join them, that it is not to be revoked to make these two days according to their script and according to their appointed time, every year. כז.
28. And these days shall be remembered and celebrated throughout every generation, in every family, every province, and every city, and these days of Purim shall not be revoked from amidst the Jews, and their memory shall not cease from their seed.