The Role of the OT with the NT

In Acts 7:1-53 Stephen gives a defense of the accusations of blasphemy concerning Moses, the Law, and the Temple. When asked if he was rejecting these beliefs of the Jewish religion, Stephen gives a powerful exposition.
Stephen delivers a beautiful sermon in the Old Testament and how it connects with the New Testament. It is critical for Christians to understand the role of the Old Testament in light of the New Testament.
We cannot have one and reject the other. We must understand the theology of the Old and how this points to the culmination of the Messiah in the New.