How do we know that Jesus Christ is the Mediator of the Covenant?

The recognition of Jesus Christ as the Mediator of the Covenant is found in several scriptural affirmations and theological principles. Primarily, He was chosen by the Father to fulfill this role, as noted in John 3:16, asserting that God sent His only Son to guarantee the peace between God and humanity. This divine commission is complemented by Christ's ability to satisfy all the demands of God's justice through His sacrifice, as no one else could adequately mediate this relationship. His fulfillment of the Covenant is not merely in its establishment but in its proclamation through His Gospel, making Him the central figure in God's plan of redemption and restoration for His people.