"But for the sake of greater accuracy I add, being constrained to write, that there are also other books besides these, which have not indeed been put in the canon, but have been appointed by the Fathers as reading-matter for those who have just come forward and which to be instructed in the doctrine of piety: the Wisdom of Solomon, the Wisdom of Sirach, Esther, Judith, Tobias, the so-called Teaching of the Apostles (Didaché) and the Shepherd.
Athanasius, 367 AD
"The Canonical Scriptures are these:
Genesis, Exodus, Leviticus, Numbers, Deuteronomy, Joshua the son of Nun, Judges, Ruth, four books of Kings, two books of Paraleipomena, Job, the Psalter, five books of Solomon, the books of the twelve prophets, Isaiah, Jeremiah, Ezechiel, Daniel, Tobit, Judith, Esther, two books of Esdras, two Books of the Maccabees.
Canon of Carthage, 397
Can you explain?