Reformed Christians believe that justification—the event
      by virtue of which a person comes to be saved—consists in the
      juridical imputation of  righteousness.  This is distinguished
      from God's sanctifying the person,  where righteousness is
      induced in the person.  Reformed Christians, of course, believe
      that sanctification comes along with justification, but want
      to  maintain a distinction between the two.
 What would
      justification consist in on such a view?   What is the
      difference between being justified and not being justified? In this
      post I want to clear the way for further discussion by rejecting
      some accounts that I think are particularly problematic.  While I
      myself reject the Reformed distinction between justification
      and sanctification, I want to offer these arguments in a
      friendly way to my Reformed brethren.
 Problematic
      account 1: Justification consists in predestination.[note
      1]  On this account what makes Patricia justified is that God
      has predestined her for salvation.  Thus, her being justified is
      not grounded in any intrinsic property of hers, but in a property
      of God—that God intends to save her.
 The most obvious
      problem with this account is that then Patricia is justified from
      the first moment of her existence.  But if so, then she does not
      change in respect of justification when she repents of her sins
      and accepts Christ as her savior.  It seems plausible to suppose
      that justification does not precede faith.  (One argument for
      this  is that according to the Reformed, one is saved by faith,
      and  hence being justified cannot precede faith;  this is a bad
      argument because it neglects the possibility of backwards causation
      or causation mediated by God's foreknowledge.)  It likewise seems
      plausible to connect justification and the forgiveness of sins.
      Something changes for the Christian. She was lost, and now she is
      found.  And this change seems tied to justification.  The correct
      thing vis-à-vis Reformed Theology (and probably the truth,
      too) to say seems to be that prior to  receiving salvific grace,
      Patricia was predestined but not yet justified;   after receiving
      salvific grace, she is predestined and justified.
      Problematic account 2: Justification consists in a changing
      divine attitude. On this account, when Patricia becomes
      justified, God's attitude towards Patricia changes.
 A major
      difficulty with this approach is that it is difficult to square
      with divine simplicity or immutability.  Perhaps one can square it
      with immutability by positing that God eternally has one attitude
      towards Patricia-at-t for t<t0
      and eternally has another attitude towards Patricia-at-t for
      t>t0, where t0 is the
      moment of justification. If so, then in some sense there is no real
      change at all in anything at the time of justification—it's
      simply that Patricia has reached a  time at which she is favored,
      but any change here whether on the part of Patricia or of God is a
      Cambridge change.  Can justification be a Cambridge change?  Does it
      make sense to rejoice in a mere Cambridge change in the way in which
      one rejoices in one's salvation? 
 Moreover, this will not
      take care of problems of divine simplicity.  God being omnipotent
      could, surely, have justified Patricia not at t0
      but at t1 instead.  Consider a world just like
      this one but where that happens.  What is the difference between
      this world and that world in virtue of which in this world Patricia
      is justified at t0 but in that world she is
      justified at t1?  Since  justification is an
      extrinsic property of Patricia on this view, the difference must lie
      in God's attitudes: in one world God has one set of attitudes and in
      the other another.  But this seems to violate divine simplicity: it
      suggests that God is not identical with divine attitudes.  There is
      a way of handling this in general, and that is to suppose that
      the attitudes are extrinsic properties of God.  But this solution
      raises the question of what properties of creatures are such that
      in virtue of them it is correct to talk of God having one attitude
      in one world and the other in the other?  Since on the present
      account Patricia's justification was supposed to be solely a fact
      about God's attitudes, it does not seem that there is room for such
      properties of creatures.
  Problematic account 3:
      Justification is a dispositional property: x is justified at
      t iff were x to die at t, x would go
      to  heaven.  Granted, before the time t0
      of justification, it was true of Patricia that she will go to
      heaven (this is true in virtue of predestination, say).  But if
      t-1<t0, it was not true
      that of Patricia that were she to die at t-1,
      she would go to  heaven—predestination only ensures the
      indicative that she will go to heaven, and therefore that
      she won't die before t0.
 This account has
      several problems.  The first is that on this view,  it seems one
      only has instrumental reason to desire justification: the value of
      justification consists in going to heaven.  Moreover, it is not
      clear why it makes sense, given predestination, to rejoice at all
      at having acquired justification.  After all, now having
      this dispositional property is of little value as such
      (except insofar as now might be the exact time of one's death,
      which is improbable, especially of the now is instantaneous).
      What is of value is having this dispositional property  at
      the moment of death.  It is true that Reformed Christians
      generally believe that once you have this dispositional property,
      you have it for the rest of your life.  Thus, evidence for having
      the property now is equally evidence that one will have it at
      the moment of one's death.  But then one does not have reason
      to rejoice even instrumentally in the present  possession of
      the dispositional property.  The true object of rejoicing is
      the salvation, rather than the present having of the property of
      justification.  It is true that on some Reformed views one comes to
      have knowledge that one will be saved at the time that one becomes
      justified, and it would make sense to rejoice in this knowledge.
      But the knowledge is distinct from the salvation.  Granted, we can
      talk of Martha rejoicing at the negative results of her HIV test.
      But it seems that the appropriate object of rejoicing is her
      being HIV negative, or her knowing that she is HIV negative,
      though we admittedly transfer our joy to things associated with
      the primary object of our joy, and so perhaps there is something
      to the idea that Martha rightly rejoices in the negative results
      of the test.  But, in any case, the joy at being justified should
      not be joy by association.
 Another problem is with the
      ground of the dispositional property. We can't just "jump into
      heaven" at our death.  "To go to heaven" is to be placed in a
      heavenly state by God.  The dispositional property is not, then,
      grounded in some kind of a power of the person who has it.  Nor,
      on the Reformed view, is it grounded in the merits of the person.
      Rather, it seems to be grounded in God's will.  But if so, then
      the problems of Account 2 come back.
 Conclusions:
      These three accounts are problematic, especially for those
      who accept divine simplicity (as at least some classic Reformed
      creeds apparently do).  What these accounts all have in common is
      that they make the imputation of righteousness be an extrinsic,
      Cambridge property of the person being justified.  I suspect
      that this is what is wrong with all of these accounts.  Instead,
      one needs an account on which justification consists in a real,
      grace-wrought change in the person.  From a Reformed perspective,
      the difficulty with such an account is the danger that the change
      will then consist in actual righteousness in the person, and hence
      the distinction between justification and sanctification will
      be erased.  Personally, I don't mind this danger at all—the
      distinction between justification and sanctification is shaky
      biblically and pretty much non-existent patristically. But Reformed
      folks do mind it.  I think that what they might do well to do is to
      adopt a view according to which it is a genuine intrinsic property
      of a person that the person is guilty or innocent of something
      (there are suggestions to that effect in Wojtyla's The Acting
      Person, so it's a view that not just Reformed folks might
      find congenial), and then hold that in justification God directly
      produces a change in the person in respect of that property.