This piece of mine is running on the Gospel Coalition:
I am increasingly hesitant to use the phrase “finding Christ in the Old Testament” (or Pentateuch, Psalter, or Wisdom Literature, and so on). It seems to imply that the person of Christ is merely a theme among others to be mined from the Old Testament alongside other themes such as justification, resurrection, or the like.
The second person of the Trinity made incarnate is, of course, more than simply a theme of God’s self-revelation in the Old Testament Scriptures. He is the culmination of God’s self-revelation in all of history, the perfect embodiment of the godhead (Col 2:9). To a certain extent, we could say that the quest to find Christ in the Old Testament is analogous to the quest to find Thomas Jefferson in Declaration of Independence. Christ is everywhere throughout the Old Testament. It speaks of him explicitly and implicitly, in promises, patterns, types, hints, and images. Through these various ways the Old Testament reveals and anticipates the richness of his character: his work, his life, his glory, his hope, his might, his love, his suffering, his wisdom, and so much more, and it does this all before the historical event of his incarnation.
Read more here.