The Apocrypha

Some Bibles have another class of Old Testament books, generally called the Apocrypha. These are later books, which appeared in Greek first, not Hebrew

1Esdras covers the same groound as Ezra and Nehemiah, while 2Esdras is prophetic. The Additions to Esther are exactly what they sound like.  The Wisdom of Solomonand The Wisdoom of Jesus,the Son of Sirach are similar to Proverbs, Baruch and The Epistle of Jeremiah claim to be by Jeremiah's secretary and Jeremiah's respectively, and The Prayer of Manasseh purports to be the prayer of repentance of one of Judah's wicked kings. The Song of the Three Holy Children, The History of Susanna, .and The History of the Destruction of Bel and the Dragon are all additions to Daniel. 1Maccabees tells of a war between Israel and the Greeks, and 2Maccabees is prophetic.

And Tobit and Judith are about individuals.

I've never seen any reason to include them in Scripture. At the same time, there are a lot of good reasons to read them; chief among these is the fact that  any Christian can learn from them.

The Apocrypha is not something the Catholics came up with in the 1500s. Nor is it true that these books were unknown when the apostles wrote. Still, I defer to those wiser and godlier than I. The Apocrypha is good reading, but not the Bible.