About the Canon - evidences of NT quotes and references from the Deuterocanonical Books of the Old Testament

One of the things that has been fun for me as a lover of God’s Word, the Bible, is to discover that the Deuterocanonical Books of the Old Testament really are quoted and referred to in the NT, both by Jesus and by the other NT writers.

These references are quite extensive. Now, some will argue that even pagan poets are quoted, but that doesn’t make their writings Scripture.

In the first place, the writings of pagan poets were never included in Scripture. The Deuterocanonical Books have always been included in Scripture by both the Catholic Church and the Eastern Churches.  They are part of the Septuagint - the translation of the Old Testament into Koiné Greek. It was the Bible used by Jesus and the Apostles as well as all the NT writers. Many Protestants forget that, or they don’t know.

Here is part of the Wikipedia entry for Septuagint.

The Septuagint (from the Latin septuaginta, "seventy") is a translation of the Hebrew Bible and some related texts into Koine Greek. As the primary Greek translation of the Old Testament, it is also called the Greek Old Testament. This translation is quoted a number of times in the New Testament,^[1][2] particularly in Pauline epistles,^[3] and also by the Apostolic Fathers and later Greek Church Fathers. The title (Greek: Ἡ μετάφρασις τῶν Ἑβδομήκοντα, lit. "The Translation of the Seventy") and its Roman numeral acronym LXX refer to the legendary seventy Jewish scholars who solely translated the Five Books of Moses as early as the 3rd century BCE.^[4][5]

The traditional story is that Ptolemy II sponsored the translation of the Torah (Pentateuch, Five Books of Moses). Subsequently, the Greek translation was in circulation among the Alexandrian Jews who were fluent in Koine Greek but not in Hebrew,^[6] the former being the lingua franca of Alexandria, Egypt and the Eastern Mediterranean at the time.^[7]

The Septuagint should not be confused with the seven or more other Greek versions of the Old Testament,^[4] most of which did not survive except as fragments (some parts of these being known from Origen's Hexapla, a comparison of six translations in adjacent columns, now almost wholly lost). Of these, the most important are those by Aquila, Symmachus, and Theodotion.

One of the most controversial teachings of the Church is that of Purgatory. Part of that is because of the abuses in the sale of indulgences.  This was one of the things that really bothered Martin Luther. He righty spoke out against those abuses. The Church had to quit those practices, and clarify what an indulgence really is. It is not something to be bought and sold like a commodity. 

Most Protestants believe that the Catholic Church made up the teaching about Purgatory. Actually, the idea of Purgatory has Biblical support. Since no one is completely sanctified in this life, there has to be a final purification so that the person can enter God’s presence for all eternity and not be bothered by any tendency to sin as even the best believer is now. 

That final purification is called Purgatory. 

Here are two passages that support the doctrine of Purgatory. No, not all theories about what it is and how long a person spends there are official Church dogma. Some are pretty elaborate. The basic idea is clear, though. The person in Purgatory will enter Heaven and will see the Beatific Vision just like any other saint. The process of sanctification will produce the effect of holiness in the life of the believer. Purgatory is part of that. 

Check out the Catechism of the Catholic Church on that. You may not agree, but at least know what you do not agree with and be able to explain why you disagree. Look at these two Scriptures and think about what they mean and how they relate to a believer’s sanctification and final purification. 

The wood, hay, and stubble will be burned away. The gold, silver, and precious stones will remain. We will be saved as though by fire if we persevere by the grace that God freely bestows on us in Christ. 

Reading 1 Wis 2:23–3:9

God formed man to be imperishable;
the image of his own nature he made them.
But by the envy of the Devil, death entered the world,
and they who are in his possession experience it.

But the souls of the just are in the hand of God,
and no torment shall touch them.
They seemed, in the view of the foolish, to be dead;
and their passing away was thought an affliction
and their going forth from us, utter destruction.
But they are in peace.
For if before men, indeed, they be punished,
yet is their hope full of immortality;
Chastised a little, they shall be greatly blessed,
because God tried them
and found them worthy of himself.
As gold in the furnace, he proved them,
and as sacrificial offerings he took them to himself.
In the time of their visitation they shall shine,
and shall dart about as sparks through stubble;
They shall judge nations and rule over peoples,
and the Lord shall be their King forever.
Those who trust in him shall understand truth,
and the faithful shall abide with him in love:
Because grace and mercy are with his holy ones,
and his care is with his elect.

1 Corinthians 3

10 According to the grace of God given to me, like a skilled master builder I laid a foundation, and someone else is building upon it. Let each one take care how he builds upon it. 11 For no one can lay a foundation other than that which is laid, which is Jesus Christ. 12 Now if anyone builds on the foundation with gold, silver, precious stones, wood, hay, straw— 13 each one's work will become manifest, for the Day will disclose it, because it will be revealed by fire, and the fire will test what sort of work each one has done. 14 If the work that anyone has built on the foundation survives, he will receive a reward. 15 If anyone's work is burned up, he will suffer loss, though he himself will be saved, but only as through fire.