Status Updates From Redemption Accomplished and...

All to which the people of God have been predestined in the eternal election of God, all that has been secured and procured for them in the once-for-all accomplishment of redemption, all of which they become the actual partakers in the application of redemption, and all that by God’s grace they will become in the state of consummated bliss is embraced within the compass of union and communion with Christ.

Union with Christ is the central truth of the whole doctrine of salvation.