What does the Bible say about needing a mediator between man and God?

In Job 9, we see Job grappling with the weighty question of how a sinful man can stand just before a holy God. Job acknowledges God’s absolute greatness and recognizes his own weakness and inability to argue his case. He understands that no matter how he attempts to justify himself, he is at an immense disadvantage before the sovereign Creator. This understanding leads Job to cry out for a mediator, or 'day's man,' who can stand between him and God to make intercession on his behalf. This need for a mediator is crucial in Christian theology, reflecting the role of Christ as our High Priest who intercedes for us (Romans 8:34).