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

The Bible affirms that Jesus is the only mediator between God and man, as stated in John 14:6, where He claims, 'I am the way, the truth, and the life.' Our sinful nature creates a barrier between us and God, which can only be crossed by Christ's sacrificial death. The burning bush signifies God's presence and the holiness that demands a mediator. In Exodus 3:5, God commands Moses to remove his shoes because he stands on holy ground, illustrating the necessity of Christ as the one who reconciles us to God, making us righteous before Him. Without Christ, we cannot approach God.