
Answer: High Priest is only one of the many titles applied to Jesus: Messiah, Savior, Son of God, Son of Man, Friend of Sinners, etc. Each one focuses on a particular aspect of who He is and what that means for us. In the book of Hebrews, Jesus is called a High Priest (Hebrews 2:17; 4:14
Hebrews 5:6). Like the Levitical priests, Jesus offered a sacrifice to satisfy the Law of God when He offered Himself for our sins (Hebrews 7:26-27). Unlike the Levitical priests, who had to continually offer sacrifices, Jesus only had to offer His sacrifice once, gaining eternal redemption for all who come to God through Him (Hebrews 9:12
Hebrews 2:9). As a man, He was subject to all the weaknesses and temptations that we are, so that He could personally relate to us in our struggles (Hebrews 4:15). Jesus is greater than any other priest, so He is called our “Great High Priest” in Hebrews 4:14, and that gives us the boldness to come “unto the throne of grace, that we may obtain mercy, and find grace to help in time of need” (Hebrews 4:16 KJV
Recommended Resource: Jesus: The Greatest Life of All by Charles Swindoll
Answer:
sin. Sin is described in the Bible as transgression of the law of God (1 John 3:4) and rebellion against God (Deuteronomy 9:7; Joshua 1:18). God hates sin, and sin stands between all of us and Him. “There is no one righteous, not even one” (Romans 3:10). All human beings are sinners by virtue of sin we have inherited from Adam, as well as the sin we commit on a daily basis. The only just penalty for this sin is death (Romans 6:23), not only physical death but eternal death (Revelation 20:11–15

Hebrews 9:15: “For this reason Christ is the mediator of a new covenant, that those who are called may receive the promised eternal inheritance—now that He has died as a ransom to set them free from the sins committed under the first covenant.” It is because of the great Mediator that we are able to stand before God clothed in the righteousness of Christ Himself. On the cross Jesus exchanged our sin for His righteousness (2 Corinthians 5:21

Hebrews 9:22). But this was a blood offering that was limited in its effectiveness, which is why it had to be offered again and again. This was a foreshadowing of the “once for all” sacrifice which Jesus offered on the cross (Hebrews 7:27
Luke 22:20). The pouring of the wine in the cup symbolized the blood of Christ which would be poured out for all who would ever believe in Him. When He shed His blood on the cross, He did away with the Old Covenant requirement for the continual sacrifices of animals. Their blood was not sufficient to cover the sins of the people, except on a temporary basis, because sin against a holy and infinite God requires a holy and infinite sacrifice. “But those sacrifices are an annual reminder of sins, because it is impossible for the blood of bulls and goats to take away sins” (Hebrews 10:3). While the blood of bulls and goats were a “reminder” of sin, “the precious blood of Christ, a lamb without blemish or defect” (1 Peter 1:19) paid in full the debt of sin we owe to God, and we need no further sacrifices for sin. Jesus said, “It is finished” as He was dying, and He meant just that—the entire work of redemption was completed forever, “having obtained eternal redemption” for us (Hebrews 9:12
Hebrews 9:14 NCV). This means that not only are we now free from having to offer sacrifices which are “useless” to obtain salvation, but we are free from having to rely on worthless and unproductive works of the flesh to please God. Because the blood of Christ has redeemed us, we are now new creations in Christ (2 Corinthians 5:17
Recommended Resource: Jesus: The Greatest Life of All by Charles Swindoll
Question: “What is the purpose of Jesus interceding for us in Heaven?”
Answer: Speaking of Jesus, the writer to the Hebrews says, “Therefore He is able also to save forever those who draw near to God through Him, since He always lives to make intercession for them” (Hebrews 7:25). This verse (and others like it) tells us that although Christ’s work to secure the salvation of the elect was completed on the cross, as evidenced by His cry “It is finished!” (John 19:30), His care for His redeemed children will never be finished.
Jesus did not go to heaven after His earthly ministry and “take a break” from His role as eternal Shepherd to His people. “For if while we were enemies we were reconciled to God through the death of His Son, much more, having been reconciled, we shall be saved by His life” (Romans 5:10, emphasis added). If when humble, despised, dying, and dead, He had the power to accomplish so great a work as reconciling us to God, how much more may we expect that He will be able to keep us now that He is a living, exalted, and triumphant Redeemer, raised to life and interceding on our behalf before the throne (Romans 8:34). Clearly, Jesus is still very active on our behalf in heaven.
After Jesus ascended to heaven and was seated at the right hand of God the Father (Acts 1:9; Colossians 3:1), He returned to the glory He had before His incarnation (John 17:5) to carry on His role of King of kings and Lord of lords—His eternal role as the second Person of the triune God. While this old earth continues to be “won” for Christ, Jesus is the Advocate for Christians, meaning He is our great Defender. This is the intercessory role He currently fulfills for those who are His (1 John 2:1). Jesus is always pleading our case before the Father, like a defense lawyer on our behalf.
Jesus is interceding for us while Satan (whose name means “accuser”) is accusing us, pointing out our sins and frailties before God, just as he did with Job (Job 1:6-12). But the accusations fall upon deaf ears in heaven, because Jesus’ work on the cross paid our sin debt in full; therefore, God always sees in His children the perfect righteousness of Jesus. When Jesus died on the cross, His righteousness (perfect holiness) was imputed to us, while our sin was imputed to Him at His death. This is the great exchange Paul talks about in 2 Corinthians 5:21. That took away forever our sinful state before God, so God can accept us as blameless before Him.
Finally, it is important to understand that Jesus is the only mediator between God and man. No one else—not Mary, not any previous Christian saints, not angels—has the power to intercede for us before the throne of the Almighty. Christ alone mediates and intercedes between God and man. “For there is one God, and one mediator also between God and men, the man Christ Jesus” (1 Timothy 2:5).
Recommended Resource: Jesus: The Greatest Life of All by Charles Swindoll