Definition and Significance
Access to God refers to the ability of believers to approach and communicate with God, a privilege made possible through the redemptive work of Jesus Christ. This concept is central to Christian theology, emphasizing the relationship between God and humanity, and the transformative power of faith.

Old Testament Context
In the Old Testament, access to God was limited and mediated through the priesthood and sacrificial system. The Tabernacle, and later the Temple, served as the dwelling place of God's presence among His people. Only the High Priest could enter the Most Holy Place, and that only once a year on the Day of Atonement (Leviticus 16). The sacrificial system underscored the holiness of God and the sinfulness of humanity, necessitating a mediator.

New Testament Fulfillment
The New Testament reveals the fulfillment of these Old Testament shadows in the person and work of Jesus Christ. Through His death and resurrection, Jesus provides direct access to God for all believers. Hebrews 10:19-20 states, "Therefore, brothers, since we have confidence to enter the Most Holy Place by the blood of Jesus, by the new and living way opened for us through the curtain of His body." This passage highlights the tearing of the Temple veil at Christ's crucifixion (Matthew 27:51), symbolizing the removal of barriers between God and humanity.

Role of Jesus Christ
Jesus is the mediator of the New Covenant, granting believers access to God. 1 Timothy 2:5 affirms, "For there is one God and one mediator between God and men, the man Christ Jesus." Through faith in Christ, believers are justified and can approach God with confidence. Ephesians 3:12 declares, "In Him and through faith in Him we may enter God’s presence with boldness and confidence."

The Holy Spirit's Role
The Holy Spirit plays a crucial role in facilitating access to God. Romans 8:15-16 explains, "For you did not receive a spirit of slavery that returns you to fear, but you received the Spirit of sonship, by whom we cry, 'Abba, Father!' The Spirit Himself testifies with our spirit that we are God’s children." The indwelling of the Holy Spirit assures believers of their relationship with God and empowers them to live in communion with Him.

Prayer and Worship
Access to God is exercised through prayer and worship. Believers are encouraged to "pray without ceasing" (1 Thessalonians 5:17) and to "draw near to God" (James 4:8). Worship is both a response to God's holiness and a means of experiencing His presence. John 4:24 teaches, "God is Spirit, and His worshipers must worship in spirit and in truth."

Implications for Believers
The doctrine of access to God has profound implications for the Christian life. It assures believers of their acceptance before God, encourages a life of holiness, and fosters a deep sense of peace and security. Hebrews 4:16 invites believers to "approach the throne of grace with confidence, so that we may receive mercy and find grace to help us in our time of need."

Conclusion
Access to God is a foundational aspect of the Christian faith, rooted in the redemptive work of Christ and the ongoing ministry of the Holy Spirit. It transforms the believer's relationship with God, enabling a life of prayer, worship, and intimate fellowship with the Creator.