Part 1: The pure Hebrew Masoretic Text Biblically Defended, and the Septuagint Demolished, with many Scriptures (in relation to the subject about and the book of the Old Testament itself):
Many Bible Verses Completely Demolish the Alexandrian Septuagint of Egypt and show that the Septuagint (from Egypt, a nation that was full of pagan and Gnostic heresies) is not trustworthy while Scriptures shows that the pure line of Hebrew Masoretic Text is superior and biblical:
1st point with verses – every single point and verse below is related to one verse or sets verse) God committed the Old Testament to the Old Testament Hebrews/Jews, specifically the Levities/tribe of Levi , who copied the Old testament all the [1] What advantage then hath the Jew? or what profit is there of circumcision? [2] Much every way: chiefly, because that unto them were committed the oracles of God. (Romans 3:1-2 [if you doubt this, see Romans 3:3-4 where Paul confirms Romans 3:1-2])
2) The Scriptures clearly mention that God shewed his word and his statues (listed throughout Genesis to Deuteronomy) and judgments (covered and described in the whole Old Testament to Jacob/the nation of Israelites during the Old Testament’s times. The next verse, verse 20 mentions “he hath not dealt so with any other nation”, showing that the previous verse (verse 19) shows that only the nation of Israel was given both the word and statues of, and in, and for the Old Testament itself.
[19] He sheweth his word unto Jacob, his statutes and his judgments unto Israel. [20] He hath not dealt so with any nation: and as for his judgments, they have not known them. Praise ye the Lord. (Psalm 147:19-20)
3) In the Old Testament times (Genesis to Malachi), the law was to be sought at the Levite priests’ mouth who had the law and kept knowledge
Malachi 2:4, 7 KJB
[4] And ye shall know that I have sent this commandment unto you, that my covenant might be with Levi, saith the LORD of hosts.
[7] For the priest's lips should keep knowledge, and they should seek the law at his mouth: for he is the messenger of the LORD of hosts.
4) According to God, who was talking to Moses, the book of the law was to be before the priests/Levities and the Hebrews' kings would have to write himself a copy from their book of the law, which was before the Levities:
Deuteronomy 17:18 KJB
And it shall be, when he sitteth upon the throne of his kingdom, that he shall write him a copy of this law in a book out of that which is before the priests the Levites: [who, as being Hebrews, were NEVER Greeks or Egyptians ethnically, see the next points ]
4) Moses set the law before the children of Israel, and Joshua wrote a copy of the law of Moses before only the children of Israel: And this is the law which Moses set before the children of Israel: (Deuteronomy 4:44) AND [30] Then Joshua built an altar unto the Lord God of Israel in mount Ebal, [31] As Moses the servant of the Lord commanded the children of Israel, as it is written in the book of the law of Moses, an altar of whole stones, over which no man hath lift up any iron: and they offered thereon burnt offerings unto the Lord, and sacrificed peace offerings. [32] And he wrote there upon the stones a copy of the law of Moses, which he wrote in the presence of the children of Israel. (Joshua 8:30, 32)
5) Moses passed down the Law to the Levities, not to Egyptians or Greeks: [And Moses wrote this law, and delivered it unto the priests the sons of Levi, which bare the ark of the covenant of the LORD, and unto all the elders of Israel. (Deuteronomy 31:9)
6 & 7 - The Levities were “from among” and “among” the children of Israel/Jacob; thus it biblically makes sense that Levities are Israelites/Hebrews: