While Pastor Weedon and I were discussing progression in sanctification, the Holy Father was preparing his Wednesday Audience on St Gregory of Nyssa’s treatment of exactly the same doctrine. Here it is from September 5. And here is the Pope’s summary in English for those of you who don’t what the whole translation:
Dear Brothers and Sisters,
In our catechesis on the teachers of the early Church, we once again consider Saint Gregory of Nyssa, one of the great Cappadocian Fathers of the fourth century. At the heart of Saint Gregory’s teaching is the innate dignity of every man and woman, made in the image of God and called to grow more fully into his likeness. Human fulfillment is found in a dynamic process of growth towards that perfection which has its fullness in God; daily we “press forward” (cf. Phil 3:13) towards union with God through love, knowledge and the cultivation of the virtues. This ascent to God calls for a process of purification which, by his grace, perfects our human nature and produces fruits of justice, holiness and goodness. In all of this, Jesus Christ, the perfect image of the Father, is our model and teacher. Gregory insists on Christ’s presence in the poor, who challenge us to acknowledge our own dependence on God and to imitate his mercy. Finally, Gregory points to the importance of prayer modeled on the Lord’s own prayer for the triumph of God’s Kingdom. May his teaching inspire us to seek that holiness and purity of heart which will one day enable us to see God face to face!
Given that, I think it would be pretty hard for anyone to deny that the doctrine of progression in sanctification has a strong place in the Christian Tradition.