God was pleased, in his eternal purpose, to choose and ordain the Lord Jesus, his only begotten Son, to be the mediator between God and man. As the mediator, he is the prophet, priest, and king, the Head and Savior of the church, the heir of all things, and the judge of the world. God gave to him, from all eternity, a people to be his seed and to be by him, in time, redeemed, called, justified, sanctified, and glorified.

This confession considers Christ as mediator. It is out of God’s mere good pleasure and foreknowledge that he chose Jesus to be the mediator between God and man… It is by grace alone that God saves his people through Christ. Because humanity left to themselves would result only in the wrath of God being poured out.

As the mediator Christ fulfills the role of prophet, priest and king. The Old Testament gives us a glimpse of these offices… we saw a succession of prophets (Abraham, Moses, etc.), priests (Melchizedek, Moses, Aaron, etc.) and kings (Saul, David, Solomon, etc.) throughout Old Testament history. As mediator, Christ is our perfect Prophet, our perfect Priest and our perfect King… all fulfilled in one person.

Even today, in this worship service and in our lives, Jesus Christ as prophet reveals God’s will for our salvation through his Word and Spirit; Christ as Priest, has offered himself as a sacrifice and has, therefore, satisfied divine justice to reconcile us to God, and continues to pray for every Christian while sitting at the right hand of the Father; and Christ as King actively rules and defends all His people, while restraining and conquering all His enemies.