What does the Bible say about the significance of Christ in the Old Testament?

The Old Testament is rich with types and shadows that foreshadow the coming of the Lord Jesus Christ. In 1 Samuel 1, for instance, Elkanah represents Christ, emphasizing His priestly lineage and sacrificial love. The entire narrative of Scripture revolves around Jesus, who is called the first and the last, revealing His divine nature and His role in God's redemptive plan. Major portions of the Old Testament serve as blueprints, detailing how Christ embodies the roles of prophet, priest, and king. For example, Hebrews 7 highlights Christ’s unique priesthood in the order of Melchizedek, contrasting it with the Levitical priesthood that was insufficient for atonement.