How does the Old Testament relate to Christ and salvation?

The Old Testament serves as a foundation for understanding Christ and the necessity of salvation through Him. Throughout the Old Testament, various elements, such as the sacrificial system and the temple veil, foreshadow the coming of Christ and His redemptive work. The sacrifices point to the ultimate sacrifice of Jesus, who fulfilled the law perfectly and bore the sins of His people. Hebrews 10:1 explains that the law having a shadow of good things to come, could never make those who approached perfect. Thus, it was through Christ's incarnation and sacrifice that the promises and prophecies were realized, establishing the fulfillment of God's plan of salvation (Hebrews 10:1).