What does the Bible teach about the mediator between God and men?

The role of Christ as the sole mediator is a critical tenet of Christian theology, underscored by 1 Timothy 2:5, which states that there is one God and one mediator between God and men, the man Christ Jesus. This exclusivity emphasizes that no other person—be it Mary, popes, or any saints—can act as mediators in salvation. Only Christ, who has fulfilled the requirements of the law and satisfied divine justice, has the authority to intercede on behalf of God's elect. This understanding leads to the assurance found in Hebrews 7:25, where it states that Jesus is able to save completely because He always lives to intercede for them. Thus, the certainty of salvation rests wholly on Christ's mediatorial work.