Hebrews 10:20 in the King James Version of the Bible reads: "By a new and living way, which he hath consecrated for us, through the veil, that is to say, his flesh."

The book of Hebrews was written to Jewish Christians who were facing persecution and were struggling to hold fast to their faith in Jesus Christ. The author of Hebrews sought to encourage and strengthen them by reminding them of the superiority of Christ and the new covenant He had established.

In this particular verse, the author is emphasizing the significance of the access that believers now have to God through Jesus Christ. The "new and living way" refers to the pathway to God that has been opened up by Christ's sacrifice on the cross. The old system of animal sacrifices and the high priest's rituals has been replaced by a new way of approaching God through faith in Jesus. This new way is characterized by its life-giving nature, as it offers forgiveness, reconciliation, and a personal relationship with God.

The phrase "which he hath consecrated for us" points to the fact that Jesus, through His death and resurrection, has set apart this new way to God specifically for believers. The word "consecrated" carries the idea of being made holy or set apart for a sacred purpose, indicating that the access to God through Christ is something precious and unique.

The image of "the veil, that is to say, his flesh" alludes to the veil that separated the Holy Place from the Most Holy Place in the tabernacle and temple of the Old Testament. This veil symbolized the barrier that stood between God and humanity due to sin. However, with the death of Jesus, this barrier was torn in two, signifying the removal of the separation between God and His people. In this verse, the author is making the connection between the torn veil and Jesus' flesh, suggesting that it is through the sacrificial death of Christ that the way to God has been opened.

The theme of access to God through Christ is central to the message of the book of Hebrews. The author repeatedly emphasizes the superiority of Jesus as the ultimate high priest and the mediator of a better covenant. By highlighting the new and living way that Christ has consecrated for believers, the author is underscoring the incomparable privilege and blessing of having direct access to the presence of God.

In the context of the book of Hebrews, this verse serves as a strong reassurance to the Jewish Christians who were facing persecution. The author is reminding them that through Christ, they have been given an unshakable and eternal hope. They no longer need to rely on the rituals and sacrifices of the old covenant, for they have been granted direct access to God through their faith in Christ.

The symbolism of the "veil" as Christ's flesh also carries profound theological significance. It points to the atoning work of Christ on the cross, where His body was broken and His blood was shed for the forgiveness of sins. Through this act, the barrier of sin and separation was removed, and a new way to God was inaugurated. This imagery underscores the centrality of Christ's sacrifice in bridging the gap between God and humanity.

Overall, Hebrews 10:20 is a powerful declaration of the unique and transformative access to God that believers have through Jesus Christ. It encapsulates the themes of redemption, reconciliation, and the superior work of Christ in establishing a new covenant. For the original audience of Hebrews, and for believers today, this verse serves as a source of encouragement and a reminder of the profound privilege and blessing of being able to approach God through the atoning work of Jesus.