This is the last installment from Hunsinger's work on Karl Barth that I intend to post before beginning the "Justification and Catholicity in the Third Millennium" thread, and it contains the most important seed for our discussion. Readers take note that (according to Hunsinger) Barth grounds justification/sanctification in the objective moment of salvation and sees vocation as the primary locus under which to explicate a theology of the Christian life and experience.
'The existential moment of salvation (as established through the event of encounter) is, it is important to see, understood primarily in terms of vocation rather than justification or sanctification. Justification and sactification are primarily conceived, in Barth's theology, as the objective aspects of salvation to which vocation is the corresponding existential aspect. Thus as Barth moves into part 3 of volume 4 of Church Dogmatics, where vocation is discussed, a much more recurrent and prominent use of "in us" can be found than in parts 1 and 2, where justification and sanctification as they occur "in Christ" are the respective topics of discussion. Much earlier it was suggested that objectivism is understood as the external basis of personalism, and personalism as the internal basis or telos of objectivism. To this it may now be added that justification and sanctification, as Barth presents them, can be interpreted as the external basis of vocation, and vocation as the internal basis or telos of justification and sanctification. As the internal basis of the objective moment of salvation, vocation is thus understood as follows. The event of vocation takes place through an encounter established and effected by God. In this event the integrity of both the divine and the human partners is so carried through that the encounter is self-involving for each. The goal of vocation is conceived as fellowship (IV/3, 520-54), and its essence is conceived as witness (IV/3, 575). As the existential moment of salvation, vocation is thus a matter of encounter, integrity, mutual self-involvement, fellowship, and witness.'
--George Hunsinger, How to Read Karl Barth, pp. 154-5.