Why is it important to understand the unity of the Old and New Testaments?

Recognizing the unity between the Old and New Testaments is crucial to fully grasping the message of salvation. As highlighted in Hebrews 10:7, 'Then said I, Lo, I come: in the volume of the book it is written of me, to do thy will, O God.' This emphasizes that the entire scripture points towards Christ and His redemptive work. The Old Testament is filled with prophecies, types, and ceremonies that all foreshadow the coming of the Savior. As Jesus explained to His disciples in Luke 24:27, He interpreted all the scriptures concerning Himself, indicating that understanding their fulfillment in Him is fundamental for faith. Thus, appreciating this unity deepens our understanding of God's overarching plan for salvation.