The UNITY of the Bible is seen in…

1)    ULTIMATE Purpose in the redeeming of Mankind from sin. Joh 5:39 Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me.

2)    NECESSITY of each book to understand all of the books and the whole story. Gal 3:19. Rom 4:15; 5:20; 7:8,13; Ga 3:16;

3)    INSTRUCTION in righteousness. Each covenant has its purpose & place in leading people to serve God, to understand sin and how to atone for it. 2Tim 3:15-17

4)    THEME. The grand scheme of Redemption through Christ unifies the entire bible. Luke 24:27

5)    YEARNING for & looking for the Messiah is the overall story of the whole bible. 

a)     Mat 2:4-5