Paul says what??
The accepted Catholic Bible included the Deuterocanonical books since the 4th century, and this even without a dogmatic decree. There was no dogmatic decree on the canon of the Bible until Trent because there was no need for one; the Deuterocanonical books were accepted by Catholics as part of the Bible.
Again, as daniel1212 has shown this is not an accurate statement.
Isolated reservations by individual theologians do not negate the general acceptance of the Deuterocanonical books. They were included in the Vulgate Bible and were used as Sacred Scripture in the Church's liturgies. There was no great debate or controversy over this issue between the 4th century and Trent.