Renewal and sanctification also do not belong in the article or matter of justification...

In the same way, renewal and sanctification also do not belong in the article or matter of justification before God, even though it is a benefit of the Mediator, Christ, and a work of the Holy Spirit.  Sanctification follows justification since, on account of our corrupt flesh, sanctification is not entirely perfect and complete in this life.  Dr. Luther write well about this in his beautiful and large commentary on the Epistle to the Galatians, in which he says the following:

We concede that good works and love must also be taught; but this must be in its proper time and place, that is, when the question has to do with works, apart from this chief doctrine.  But here the point at issue is how we are justified and attain eternal life.  To this we answer with Paul:  We are pronounced righteous solely by faith in Christ, not by the works of the Law or by love.  This is not because we reject works or love, as our adversaries accuses us of doing, but because we refuse to let ourselves be distracted from the principal point at issue here, as Satan is trying to do so.  So since we are now dealing with the topic of justification, we reject and condemn works; for this topic will not allow of any discussion of good works.  On this issue, therefore, we simply cut off all laws and all works of the Law. (LW 26:137)
~BOC, FSD, III, 28-29