How does the Old Testament relate to salvation in the New Testament?

The Old Testament is replete with types and shadows that point to the ultimate fulfillment found in Christ's redemptive work in the New Testament. From the sacrificial system established in the law to the prophetic insights given through figures such as Moses and the prophets, the entirety of Scripture prepares the way for Christ. Hebrews 10:1 highlights that the law was a shadow of the good things to come, emphasizing that salvation has always been by grace. This foundational understanding reinforces the continuity of God's redemptive plan revealed progressively through both testaments, culminating in the revelation of Christ, who fulfills the law and perfectly embodies grace and truth.