Welcome from FCFC, Buzzard. I see your spelling has not yet improved, but then, this board does not have a spell-checker.
It is interesting to note how often the Septuagint is quoted in the New Testament by the inspired writers yet the Jews at Jamnia did not approve the Septuagint canon. In fact, they specifically rejected the New Testament writings, among other Christian letters, in defining the Hebrew canon. On this matter, I have to go with the Holy Spirit and trust the Septuagint canon. It was good enough for Him to quote and for Jesus to use.