The Bible references itself
Most references, OT->OT are to the Pentateuch, likely because it was the first section to be written and recognized as canon, that it was practically written by a single prophet of a very early date and was surely complete and canonical by at latest the time of Ezra and Nehemiah. Other sections of the Old Testament were produced at a later date and not completed until after the return from the Babylonian exile.
(The Origin of the Bible: Newly Updated by F. F. Bruce, J. I. Packer, Philip W. Comfort, and Carl F. H. Henry, 2020. The Canon of the Old Testament by R. T. Beckwith. Pages 56.)
What Bible did Jesus read?
The New Testament writers quote the Septuagint, Targums, or an ad hoc rendering of the Hebrew.
This has been used to say they did not believe in the inspiredness of the original words. A recent study made it appear these quotations are interpretative and expository--a mode of quotation well known among the Jews. The writers seek to indicate the true (Christian) meaning and application of their text by the form in which they cite it. This meaning is reached by a strict application of clear-cut theological principles about the relation of Christ and the church to the Old Testament.
(The Origin of the Bible: Newly Updated by F. F. Bruce, J. I. Packer, Philip W. Comfort, and Carl F. H. Henry, 2020. Biblical Languages by Larry Walker. Section One: The Authority and Inspiration of the Bible. Page 35.)
Quotations
- Matthew 4:4 & Deuteronomy 8:3 - Temptation of Christ, not by bread alone
- Matthew 15:4 & Exodus 20:12 and elsewhere - Honor your father and mother
- Matthew 15:4 & Exodus 21:17 - Revile your father and mother and surely die
- Matthew 15:8-9 & Isaiah 29:13 - Honoring with the lips, not the heart, and teaching commandments of men as doctrine
- Acts 4:25 & Psalm 2:1-12
- Acts 28:25 & Isaiah 6:9-12
- Galatians 4:27 & Isaiah 54:1 - The children of the barren one will be more than one with a husband
- Hebrews 3 & Psalm 95
- Hebrews 8:8 & Jeremiah 31:33-34 - For [Jesus] finds fault with [the old covenant] when he says:" (followed by a quotation of Jeremiah 31:33-34) ... "then he adds," (followed by a quotation of Jeremiah 31:34)
- Jude 1:9 & The Assumption of Moses(?) - Origen mentioned this apocryphal book was extant in his time and contained this account between Michael and the devil and he supposed this is the source of this verse, but the book is lost to time. (https://www.gotquestions.org/Michael-Satan-Moses.html)
- Jude 1:14 & 1 Enoch 1:9 - Apocrypha