This work focuses on progressive sanctification as a divine and human undertaking that provides a motivational setting for the transformation of an individual's life. In Christianity, sanctification occurs when a person is 'set apart' by God to carry out his will. 'Progressive sanctification' is the aspect of sanctification that describes the process of spiritual growth. Dr. Keith Kettenring's research suggests that believers participate in this process with God in 'sanctificational synergism.' Human participation is recognized through an examination of free will and a study of components that contribute to belief and character formation. This participation also includes the evaluation of one's capabilities and one's context for spiritual growth. The integration of these concepts provides a compatible and useful matrix for a more comprehensive understanding of sanctificational growth. The study of the components of human participation is also applied to the believer's personal strategy for sanctificational growth and the church's strategy to aid sanctificational growth through worship and small groups.