Why is Christ being the express image of the Father important for Christians?

The significance of Christ as the express image of the Father lies in His role as the mediator who brings humanity into relationship with God. John 1:18 informs us that 'No one has seen God at any time; the only begotten Son, who is in the bosom of the Father, He has declared Him.' This declaration reveals essential truths about God, making Him accessible to believers. Understanding Christ as the express image helps Christians grasp the nature of God's love, grace, and righteousness, reinforcing the needed reliance on Him for salvation and reconciliation with the Father.