Much like the Gospels, the Old Testament only makes sense in light of the Person and Work of Jesus, His death, and resurrection.
The Gospels are not just bald, objective video recordings of the life and teachings of Jesus; rather they are inspired, theological retellings/interpretations after the crucial reality of the death and resurrection of Jesus. God raising Jesus from the dead changes everything for the Gospel writers. Once they were writing after this fact and the giving of the Holy Spirit at Pentecost, they could see significance in things that Jesus said and did that they could not have seen previously. And this is precisely what is given to us in the testimonial history of the Gospels.
-J. Pennington, Reading the Gospels Wisely, 153-154