It is the very nature of reconciled human community to become conformed to the image of Christ, to become his witness in the definite form of the church’s missionary service to the world. This determination of the human act is one in active correspondence to God’s very being …
The Witness of God, John G. Flett, Eerdmans, 2010, p. 195
The act of reconciliation makes humanity a witness. This is what it means to be a disciple. It is to be a witness. To be a disciple and learn from Christ is to mirror him, though without doubt in a cracked and distorted manner. Humanity witnesses to Christ in word and action individually and as follow him and so learn to as community.
Again, to be conformed to Christ’s image is to witness to him. In its nature, an image points to the original.
And how does this happen, this conformity, this mirroring, this reconciliation. It comes about through the work of the Holy Spirit. When? When the Father wills, yes, but perhaps the Father wills that our own witness, reconciliation, conformity to Christ, might be used by him to redirect others to God found in Christ?
But again, is there a key to the successful church, to the missionary church. Only that she should be herself, and not something else. There you have it. The problem was ecclesiology (enmeshed in a coherent theological whole of which one part can hardly simply be considered before another) all along. I told you so.