Christology is the study of the Doctrine of Jesus Christ. This is the most important Doctrine of the Word of God, which follows from the fact that Jesus Christ is the Center and Executor of God's plan of redemption from sin, is the only Mediator between God and man (I Timothy 2:5). Everything that God has ever done for man, is doing, or will ever do for man is through Jesus Christ, by Jesus Christ, and for Jesus Christ.