Sometimes when people are estranged, they need a mediator who comes between them to bring reconciliation. This is one way to think of the Old Testament priests. They stood between God and sinful man, offering sacrifices that would reconcile the two.
These earthly priests were a mere shadow of Christ, who came as both the Lamb of sacrifice and the final high priest. God’s Son left heaven to become flesh and blood so He could offer His life on the cross (Phil. 2:6-8). In that way, Jesus set free from sin and death all who believe in Him.
Our Savior was the perfect mediator. Because Jesus was fully God, He was the spotless Lamb the law required (Deut. 17:1). And because He was fully man, it was possible for Him to die. Unlike the earthly priests who repeatedly brought animal sacrifices for themselves and the people, Jesus offered Himself once for all to the Father in payment for the sins of mankind (Heb. 7:27). Then, having satisfied God’s justice with His blood, He was raised to life.
Death did not end the Savior’s role as our High Priest. After the resurrection, Christ ascended to heaven, where He sits at the Father’s right hand and intercedes for us. Having lived on the earth as a man, He understands our weaknesses and gives mercy and grace to help us in times of need (Heb. 4:16).
There’s great comfort in knowing we have a merciful advocate in heaven. His prayers are according to God’s will, so we also have the assurance that the Father will answer every intercession Jesus makes on our behalf.