When reading Berkhof’s Systematic theology one comes away with the notion that justification and sanctification were inseparably conflated and that works based theology reigned until the Reformation, (Berkhof, 529-30). While it is true that the Reformers were the first to articulate the doctrine of justification by faith alone and to draw out the distinction between justification and sanctification, it is not true to say that the church was uninterested in the process of sanctification until the Reformation.
Sanctification is, as the word suggests, the process by which a person is made holy. The distinction has historically been made between definitive sanctification, a setting apart by God at one’s regeneration and baptism, and progressive sanctification, the lifelong process by which a believer, by grace, is enabled to more and more die unto sin and live unto righteousness, to paraphrase Westminster. To say that the church never rested in the “apartness” of baptized believers or that the church never sought to become more conformed to God’s law would be incorrect. Furthermore, after Augustine, everyone in the West taught and believed that everything in a believer’s life was totally and completely of and by grace.
Since though we do not see traditional reformed systematic theological categories in the first fifteen centuries of the church, what do we see? I propose that we see different models of sanctification throughout the life of the church. These models are more or less chronological. They are:
- Martyrdom (1st-4th) – the intense early phase of the church. The passion of standing for one’s faith in the face of torture and death and the contagious fervor that this threat posed served to sanctify the early church.
- Orthodoxy (4th-6th) – Right belief in the era of the Creeds and Councils. Sanctification through right belief.
- Mystical Theosis – Eastern contemplative. Becoming God-like through spiritual disciplines and contemplation. Related to orthodox belief.
- Sacramental Divinization (5th-7th) – Augustine’s Western counterpart to Theosis. Being made God-like through grace by hearing the word, participation in the liturgy, sacraments, and prayer.
- Communal Regulative formation (5th – 11th) – Benedict of Nursia. Sanctification through faithful (full of faith) and evangelical (belief and adherence to the gospel) submission to a rule of life in the community of believers. Still assumed the Augustinian notion of sanctification by grace.
- Corporate Sacramental Participation – Carolingian period (8th-10th c). A form of Augustine’s notion, but more emphasizing the entire body being sanctified corporately instead of individual believers.
- Curative Pastoral Application – Innocent III (13th-14th) Emphasis on individual participation and involvement in pastoral care to bring sanctification.
- Mystical Contemplation (13th-15th) – Mystics like St. Francis and Bonaventure building on the tradition of Pseudo-Dionysius in the mystical contemplation of the Trinity. There is some of this in Augustine too.
- Imitation of Christ (15-17th) – Thomas à Kempis and the other devotio moderna adherents. Contemplation and imitation of Christ. There is some of this in Francis as well.