In the sixteenth episode of "Nurturing Spiritual Growth," Duane discusses the process of spiritual growth and the essential steps and practices that guide believers from early stages to mature discipleship. He highlights the deliberate nature of spiritual growth, which requires intentional efforts and practices similar to physical, mental, and social development.

Spiritual maturity, like physical growth, does not happen by accident but requires a balanced diet of spiritual practices that are encapsulated in Acts 2:42. These practices are as follows:

1. Apostles' Doctrine: Understanding the New Testament's revelation of grace, which sheds light on the Old Testament law, is crucial for preventing doctrinal errors and building a solid faith.

2. Fellowship: Engaging in meaningful relationships with other believers is essential for personal, social, and spiritual development.

3. Breaking of Bread: This practice, including both communion and shared meals, symbolizes unity and shared life among believers. It is vital for building community and strengthening bonds within the church, similar to family meals fostering closeness in a household.

4. Prayers: In its various forms, prayer is crucial for personal communication with God and corporate spiritual engagement. It supports all other aspects of spiritual life, anchoring the believer's relationship with God and their effectiveness in spiritual warfare.

These practices are not about legalism but about establishing a growth track, a structured pathway that facilitates steady spiritual development. Believers engage in these practices and actively support others in their spiritual journey, helping them transition from new converts to disciplined followers of Christ.

Duane addresses the challenge of spiritual growth in a world that often opposes biblical values, emphasizing the uphill nature of the spiritual journey in a culture that is metaphorically going downhill. He warns against passivity that leads to stagnation and challenges believers to adopt a proactive stance in their spiritual development.