The Christian Holy Bible was written by various authors over a period of 1,400 years. The Bible of the Jews consists of 44 books (known to Christians as the Old Testament) and was written over a period of a thousand years from 1,400 BC to 400 BC.
Then there was a period of 400 years before the birth, life, crucifixion, death, and then being raised to life again of Jesus Christ.
If Jesus Christ hadn’t been raised from the dead, and proved himself alive over a period of forty days to His disciples before ascending into heaven. Then there would never have been a Christian religion.
But the Old Testament of the Jews contains many prophecies of Jesus Christ, including His birth, life, ministry, crucifixion, death and resurrection, and that Jesus Christ is the one and only Son of God.
These Old Testament prophecies were written between 400 and 1,400 years before the birth of Jesus Christ.