Nothing is more central or basic than union and communion with Christ. . . .

Union with Christ is really the central truth of the whole doctrine of salvation not only in its application but also in its once-for-all accomplishment in the finished work of Christ. Indeed the whole process of salvation has its origin in one phrase of union with Christ and salvation has in view the realization of other phases of union with Christ.

John Murray, Redemption – Accomplished and Applied, 161.