You rely on a council that consisted of the same religious leaders that were the opponents of Our Lord? No wonder...
[Roman 3:1-2] What advantage then hath the Jew? or what profit is there of circumcision? Much every way: chiefly, because that unto them were committed the oracles of God.
Like I said....when the Lord canonized the Old Testament scriptures [Luke 24:44] He did not include the "Deuts". The Council of Jamnia saw to it that these spurious Alexandrian Greek writings were removed from the Hebrew canon and restored to that canon which had been set by Ezra and Nehemiah.
Jerome himself, wanted to leave them (Deuterocanonicals) out of the Vulgate but under pressure from superiors left them in his translation. The question in my mind is: who do you think had the authority.....Your Synods and Councils....or The Lord Himself? You folks saw to it they were finally canonized! You were wrong to do so.....and still are!
This is why your claim to canon authority is so pitiful.