“Sirach 15: 14-20
That is not Scripture.”
Its not, eh? Says who, some 16th century German or a group of post Resurrection Jews who wanted to “discredit” Christianity?
Romans 3:
1] Then what advantage has the Jew? Or what is the value of circumcision?
[2] Much in every way. To begin with, the Jews are entrusted with the oracles of God.
Approximately A. D. 90, the Jewish Council of Jamnia set the O.T. Canon. When is the earliest date you claim the Canon was set? Was it post Ressurection? Was it within 90 A.D.? Forget for the moment that the first Ecumenical Council which set your Canon was the Council Of Trent, 16th century!