Biblical Answer

The concept of theosis in Eastern Orthodoxy can be reconciled with the Western understanding of justification by faith alone. The key to this reconciliation lies in understanding the nuances of theosis and its relationship to God's nature and humanity's relationship with God. In Eastern Orthodoxy, theosis refers to the process of becoming like God, but not in the sense of becoming God or attaining a divine status. Rather, it is a process of deification, where humanity is transformed and becomes a part of God's divine nature through the Holy Spirit. This understanding of theosis is not opposed to the Western concept of justification by faith alone, but rather complements it. Justification by faith alone is a declaration of God's righteousness and humanity's sinfulness, while theosis is the process of becoming like God through the Holy Spirit.

The Western understanding of justification by faith alone is often seen as a reaction against the medieval Catholic emphasis on good works and sacraments as the means of justification. In contrast, Eastern Orthodoxy emphasizes the importance of good works and sacraments in the process of theosis. However, this does not mean that theosis is a means of justification, but rather a consequence of justification. Justification by faith alone is the initial step, where humanity is declared righteous by God, and theosis is the subsequent process of becoming like God through the Holy Spirit. This understanding of theosis is not a works-based righteousness, but rather a gift of God's grace, where humanity is transformed and becomes a part of God's divine nature.

In conclusion, the concept of theosis in Eastern Orthodoxy can be reconciled with the Western understanding of justification by faith alone. While the two concepts may seem different on the surface, they are complementary and work together to provide a complete understanding of God's plan of salvation. Justification by faith alone is the initial step, where humanity is declared righteous by God, and theosis is the subsequent process of becoming like God through the Holy Spirit. This understanding of theosis is not opposed to the Western concept of justification by faith alone, but rather complements it and provides a deeper understanding of God's nature and humanity's relationship with God.