Mitch Chase wants you to embrace not only the 27 books of the New Testament but also the 39 books of the Old Testament for your Christian discipleship. He argues that the Old Testament is not only Jewish Scripture, but is also a foundational part of Christian Scripture. In fact, you can’t really understand the New Testament without the Old.
After giving seven reasons for this assertion, he concludes:
The Old Testament is relevant for the Christian life because it is Christian Scripture. We are children of Abraham by faith, so the earlier covenants and redemptive acts of God are part of our history. We need the warnings and exhortations of the Old Testament. We need its songs and proverbs. We need to know about its prophets and kings. The Old Testament tells of saints before the cross, and they form a cloud of witnesses as we run the race after the cross.