How do we know Jesus Christ is the mediator between God and man?

Christ's role as the mediator is crucial because He bridges the gap between the infinite God and fallen humanity. The Scriptures affirm that He is the image of the invisible God (Colossians 1:15), which highlights His unique position as both divine and human. He fully represents God to us and us to God. In His humanity, He took on our sins and fulfilled the requirements of the Law, and in His divinity, He provides the perfect sacrifice for our sins. Therefore, there is no other mediator but Him (1 Timothy 2:5), making Him essential for reconciliation with the Father.