Eph 2:14-16, 14 For He Himself is our peace, who has made both one, and has broken down the middle wall of separation, 15 having abolished in His flesh the enmity, that is, the law of commandments contained in ordinances, so as to create in Himself one new man from the two, thus making peace, 16 and that He might reconcile them both to God in one body through the cross, thereby putting to death the enmity.
This is salvation, “that is, that God was in Christ reconciling the world to Himself, …”, 2Co 5:19. Christ who saved us became our peace. He made us acceptable to God by clothing us in righteousness. The enmity that brought war and division between us, Christ’s sacrifice on the cross satisfied the requirements to restore peace with God.
Beyond that, He created a new man and reconciled the two (Jews and Gentiles) into one thus making peace and now calls all believers to “Pursue peace with all people, and holiness, without which no one will see the Lord:” (Heb 12:14). It is clear that the reconciliation of the world is complete, but it is for us to urge men to fall in with and accept God’s proposals to Himself and to one another.
While churches are still trying to find ways to heal the divide its facing, Christ has solved these party-walls of division. In Him, as the cornerstone, two walls, running in different directions, met. Two sections of humanity, East and West, became united to each other, because each was united to Him, and thus was formed a new unit of humanity.