The biblical story is about more than sin and salvation. It is about the creator's purposes and the fulfillment of those purposes in the climactic revelation of God's glory in Sabbath with creation.
Christ Jesus is the Alpha and the Omega, the one through whom all things are created and all things are fulfilled. We are creatures made in God's image, called to develop and govern the earth in service to God. The exercise of human responsibility in this age plays a major part in the revelation of God's glory. Every vocation matters for creation's seventh-day fulfillment: family, friendships, worship, civic responsibility, and our work in every sphere of life.
The Son of God became one with us. He died for sinners while they still rebelled, and he was raised to life as the last Adam--the life-giving Spirit of the age to come. Christ is reconciling all things to God, including all that belongs to the responsibility of God's sixth-day royal priesthood. That is why God's promise in Christ is that those who die in the Lord will rest from their labors and their deeds will follow them.