How do we know Jesus is our only mediator?

The sermon introduces Moses as a type of Christ, acting as a mediator between God and the Israelites. However, the ultimate mediator is the Lord Jesus Christ, as stated in 1 Timothy 2:5, 'For there is one God, and there is one mediator between God and men, the man Christ Jesus.' Jesus alone fulfills this role, presenting our prayers and interceding on our behalf before the Father. The Old Testament shadows the reality of Christ's fulfillment of the mediatorial work, emphasizing that not even figures like Moses can take His place.