Jesus is the link between God and humanity
This is necessary because God and humankind have been separated. Because humanity is lost and spiritually dead due to our own disobedient hearts and actions, we cannot work our way back into a good relationship with a holy God. Because humanity is too weak to endure the punishment for sin and overcome death, we cannot save ourselves.
Yet Jesus, being both fully man and fully God, provides the way for humanity to be reconciled to a perfectly just and gracious God. In the person of Jesus, God’s justice is satisfied. In the person of Jesus, God’s mercy is offered.