The following is an excerpt from a Gospel Coalition blog post by Matt Smethurst in which he interviews Dr. Daniel Block on using responsible hermeneutics (method of interpretation) regarding Christ in the Old Testament. Daniel Block contrasts a Christocentric hermeneutic from a Christotelic hermeneutic. The latter he argues is a more responsible and accurate way to handle the Old Testament, read scripture canonically, and treat all scripture as Christian-scripture.
Perhaps we need to distinguish between “Christological preaching” and a “Christological hermeneutic,” as if under the latter we expect to find Christ in every verse of the Bible. While it’s not difficult to identify overtly Messianic texts (Psalm 2; 110; Isaiah 53; Micah 5:1-5; etc.), technically the OT rarely speaks of ho Christos, the anointed Messiah. Unless we overload that expression beyond what it actually bears in the OT, I don’t find “the Messiah” on every page. Still, YHWH is everywhere, and when I preach YHWH, I’m preaching Jesus, Immanuel, the Redeemer of Israel incarnate in human flesh. When I read Exodus 34:6-7, I see a description of the One whom John characterizes as glorious, full of grace and truth (John 1:14).