How do we know Christ is the true subject of Scripture?

In John 5:39, Jesus emphasizes that the Scriptures testify of Him, indicating that all biblical writings ultimately point to Christ as the central figure. This is a crucial aspect of understanding the relationship between the written Word and the incarnate Word. If one's reading of the Bible does not lead to a deeper understanding of and relationship with Jesus, one is not grasping the essence of Scripture. This encapsulation is supported by the recognition that the Old Testament, as the Scriptures referred to in Jesus' time, unfolds God’s redemptive plan leading directly to Christ, the fulfillment of the Law and the Prophets.