The Bible and Christianity are deeply and inseparably interconnected, as for Christians the Bible is not merely a collection of disparate books but a unified guide in which ancient prophecies and histories (the Old Testament) are closely interwoven with the life and teachings of Christ (the New Testament).

Unified Scripture: A Journey from Prophecy to Redemption

The Bible and Christianity are deeply and inseparably interconnected, as for Christians the Bible is not merely a collection of disparate books but a unified guide in which ancient prophecies and histories (the Old Testament) are closely interwoven with the life and teachings of Christ (the New Testament). In the Christian worldview, the Old Testament serves not only as a historical backdrop but also as a prelude to the coming of the Redeemer, while the New Testament fulfills this promise through specific events and teachings. It is through this interconnection that Christianity confers upon the Bible a unique purpose—as a foundational source of truth that leads believers toward eternal life.

Christians believe that, thanks to the unique interpretation they have provided, the Bible has not only been preserved but has also acquired a new, elevated meaning that reveals a singular plan of Salvation. Thus, the Bible becomes not only a religious document but also a historical foundation that aids in shaping Christian doctrines and traditions, linking people across different epochs.

Supporting citation(s):"Why are the books of the Old and New Testaments considered sacred for the Church?

... Christians helped the Jews survive." (source: link txt, page: 1)

"In the Christian conception, the Bible is complete. It is not a collection of books, but a single book unified by a single 'character' — Christ. The Old Testament speaks of the anticipation of the Redeemer. The Gospel recounts His life. The corpus of apostolic texts, including Revelation, speaks of the new destinies of His people, His Church. The Bible itself is a guide, a 'pedagogue to Christ'. It leads to God, to Omega—and the purpose of the guide is defined precisely by the meaning of its final point." (source: link txt, page: 2)

"Between the Old and New Testaments, there is a transition from earthly to eternal life. For the Old Testament represents not only a record of prophecies but also a guide to actions and behaviors, which is combined with the anticipation of Christ and belief in His coming." (source: link txt, page: 4)