Deliberations of the Church. You think the two Canons were just dropped from heaven like Joseph Smith's tablets?
The OT canon was already in existence.
Can you not read?
I provided St. Athanasius's own view that the OT canon had been established. And he was far from alone.
There was no need for "deliberations of the Church" to gradually change that which had been and was well enough established at the time of Christ for what made up the Hebrew Scripture prior to Christian era.
So what now?
Resurrection of the hand-waving argument "Septuagint, Septuagint!"
Phhffft.
That apologetic for inclusion of Apocrypha has been weighed in the balances and found wanting.