The prophets searched. Angels longed to see. And the disciples didn’t understand. But Moses, the prophets, and all the Old Testament Scriptures had spoken about it — that Jesus would come, suffer, and then be glorified. God began to tell a story in the Old Testament, the ending of which the audience eagerly anticipated. But the Old Testament audience was left hanging. The plot was laid out but the climax was delayed. The unfinished story begged an ending.
In Christ, God has provided the climax to the Old Testament story. Jesus did not arrive unannounced; his coming was declared in advance in the Old Testament, not just in explicit prophecies of the Messiah but by means of the stories of all of the events, characters, and circumstances in the Old Testament. God was telling a larger, overarching, unified story. From the account of creation in Genesis to the final stories of the return from exile, God progressively unfolded his plan of salvation. And the Old Testament account of that plan always pointed in some way to Christ.
— Tremper Longman III & J. Alan Grovesforeword in George M. Schwab, Hope in the Midst of a Hostile World(Phillipsburg, NJ: P & R Publishing, 2006), x
(HT: Of First Importance)