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

According to 1 Timothy 2:5-6, there is one God and one mediator between God and men, Christ Jesus, who gave Himself as a ransom for all. This underscores the uniqueness of Christ’s mediatorial role, fulfilling the requirements of the law by representing humanity before God and providing the necessary sacrifice for sin. His unique status as the incarnate Son of God, who bore our transgressions on the cross, solidifies His authority as the only mediator who can restore the broken relationship between a holy God and sinful humanity.