God revealed His grace and love for humanity by not leaving them in their fallen state and separated from all the blessings they needed to live the full and satisfying life He had planned for them. So, from the moment of Adam and Eve’s initial sin that led to the whole creation coming under the curse, God promised redemption through the woman’s seed (Genesis 3:15; Romans 16:20). He reiterated that promise to Abraham, telling him that a blessing to all nations would come through his offspring, namely Jesus (Genesis 22:18; Galatians 3:16). God foreshadowed the coming of Jesus in His covenant with the nation of Israel, instituting a sacrificial system for sin which enabled people to find reconciliation with God (Leviticus 16). God then used the prophets to foretell of a new and better covenant that would be established by the Messiah who would atone for sin once and for all (Jeremiah 31:31-34; Isaiah 53:1-12).
Jesus proved to be that Messiah by fulfilling all Old Testament prophecies. He was God made flesh (John 1:1-3, 14), entering human history as a man to live without sin as a perfect example (Hebrews 4:15). He died on the cross as payment for our sins (Hebrews 2:17), and then rose from the dead overcoming sin, death and Satan (Colossians 2:13-15). Jesus then returned to Heaven where He now intercedes before the Father on behalf of all those who trust in His sacrifice (Hebrews 7:25). God the Father adopts those people who respond to Christ as His children and unites them as His church. He regenerates their dead hearts to new life and pours out the Holy Spirit for supernatural empowerment so that the church can continue Christ’s work of redemption in the world (Matthew 28:18-20; Acts 1:8; Ephesians 1:13-14; Titus 3:5-8; 1 John 4:12-16).
Because of who Jesus is and what He has done, the church holds on to the supremacy of Christ as the only means to receive God’s salvation and to enter into His Kingdom (John 14:6; Colossians 1:15-23)