Growing Up in the Truth: A Rational Path to Spiritual Maturity - A Sermon Series

Clete

Truth Smacker
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A few weeks ago a good friend of mine called asking for advice / input about a new sermon series he was writing on the subject of spiritual maturity. Our on going discussions have been a blessing to me because they've served to remind me of a lot of doctrines that I haven't had a refresh on in quite a long time. I've been doing a lot of deep dives on several issues and it occurred to me that, while I've written the occasional essay here and there, and a Sunday school lesson a time or two, I've never even attempted to write a sermon and so I thought I'd give it a shot.

After starting to write the outline of my first ever sermon, I discovered quite quickly that the topic of spiritual maturity is not something one can cover in a single sermon and so I almost immediately decided it needed to be a series of sermons. At first it was going to be a series of twelve sermons but I've since decided that this was too many and so I decided to do a nine part series. Even that might come off to some to be quite a lot and so the goal is to do three sets of three sermons where each set of three can stand on its own apart from the other six if someone so chooses.

Also, I'm making every effort to write the sermons in such a way as my friend could preach these sermons at his quite conservative Baptist church without getting run out of the building on a rail. With that goal in mind, I've established the following parameters...

  • Three Sets of Three: The 9 sermons are grouped into three mini-series, each of which can stand alone as a coherent unit.
  • Mid-Acts Dispensationalism: The sermons avoid overt references to Mid-Acts Dispensationalism but reflect the distinctives of Paul’s gospel and ministry, recognizing the body of Christ as a new and separate entity from Israel.
  • Open Theism-Friendly but Subtle: The content avoids overt references to Open Theism but aligns with its principles (e.g., God is relational, responsive, and not meticulously controlling all events).
  • Miles J. Stanford’s Influence: The doctrine strongly reflects Stanford’s teaching, particularly the truths of the believer’s position in Christ, crucifixion with Christ, and spiritual growth through reckoning and rest. Stanford is not directly quoted, but his theology permeates the series.
  • Standard Baptist Church Compatibility: The language and tone are crafted to be acceptable in a typical Baptist setting, avoiding terminology that would raise theological red flags.

I started by developing an overview of the whole series where I could plan out the logic and flow of the series as a whole and then proceeded to begin writing the sermons. So far I have five of the sermons written and I've managed to stay pretty true to the original outline but not entirely so.

My intent for this thread is to post the overview and ask for input and advice, both as it stands with five sermons already written and continued advice as the series progresses. I'll post the sermons themselves on their own threads.

One final point, just for full disclosure: These sermons are entirely my own work. I’ve used ChatGPT extensively, but not in any way that could be mistaken for outsourcing the substance. So far, since June 1st, I've spent approximately 30 hours to produce the first five sermons, even with Chat GPT's help. The core ideas, the structure, the arguments, the Scripture selections, and the theological conclusions are all mine. The source material for these sermons are things you have all seen me say and make reference to many times over the years. GPT has been an editor but not to an extent that it could be rightly called a co-author of the material. It has been used to help with formatting and wording suggestions and other editing functions, but nothing that changes the meaning or direction of the material. If fact, I’ve had to correct GPT quite often, since it tends to drift back toward what it assumes is standard Christian doctrine. I’m the one steering the theology; GPT has been a tool, helpful for typing and organization, but the content is mine from start to finish.

I'll post the current series overview in the next post.....
 

Clete

Truth Smacker
Silver Subscriber
Spiritual Maturity Sermon Series

Growing Up in the Truth: A Rational Path to Spiritual Maturity



Overall outline: Three sets of three sermons



SetThemeSermons
I. Reality & ReasonFoundations1. The Word Made Flesh
2. The God Who Is Real
3. Faith: Reason’s Greatest Ally
II. Life in ChristIdentity & Union4. Crucified with Christ
5. Christ in You
6. Walking in the Spirit
III. Living with PurposeFruit & Fulfillment7. Serving the Living God
8. The Renewed Mind
9. The Judgment Seat of Christ


1. The Word Made Flesh: Logos and the Nature of Reality
Theme:
Reality is rational because God is Reason.
Rationale: This opening message establishes the foundation. God is not chaotic, arbitrary, or mystical. He is Reason itself. Christ, the Logos, is the rational source of all truth and life. Spiritual maturity begins by understanding reality as rooted in a rational, personal God.

2. The Image of God: Why Rational Beings Can Relate to a Rational God
Theme:
Man is made in God’s image with the capacity for reason, morality, and relationship.
Rationale: Now that God and faith have been defined rationally, this message turns to man’s nature. We are capable of spiritual maturity because we are rational beings made to know and respond to truth.

3. Faith and Evidence: Trusting What Is Real
Theme:
Faith is not blind belief, but reasoned trust based on substantive evidence.
Rationale: This sermon immediately builds on the first. It clarifies that biblical faith is consistent with reason. Faith is not irrational optimism or emotional certainty. It is confidence grounded in truth, supported by evidence and revelation.

4. The Nature of Sin: The Irrational Rebellion Against Reason
Theme:
Sin is a departure from truth and a betrayal of reason.
Rationale: Sin is not merely the violation of a rule; it is the willful embrace of falsehood and a denial of reality. This sermon reframes sin in moral and intellectual terms, showing that rebellion against God is rebellion against what is true and good.

5. The Source of Power: Christ in You
Theme:
True power comes not from self-effort, but from the indwelling life of Christ.
Rationale: Spiritual maturity is not achieved through striving or performance. The believer has been crucified with Christ and now lives by His life. This message shifts the focus from external behavior to internal union. It emphasizes that growth and godliness come by resting in the reality of “Christ in you,” and reckoning it true. The life we now live is lived by faith, not by flesh.

6. Walking by the Spirit: Living in Step with Reality
Theme:
Maturity is choosing truth over the impulses of the flesh.
Rationale: Once redeemed, the believer must learn to walk in truth. This sermon explains the Spirit-led life not as mysticism, but as the daily rational choice to align with what is true rather than what is merely felt.

7. The Word of God: The Foundation for Discernment and Growth
Theme:
Scripture is the standard of truth and the means by which the believer grows.
Rationale: God's Word renews the mind and trains the will. Maturity cannot happen apart from the revelation of truth. Scripture is shown to be both authoritative and intelligible, the divine instruction for rational living.

8. Spiritual Discernment: Growing in Wisdom and Understanding
Theme:
Maturity involves developing the ability to distinguish good from evil through reason and experience.
Rationale: This sermon clarifies what maturity looks like in practice. It is not just knowing Scripture, but being able to apply it with insight and consistency. Discernment is both a moral and intellectual discipline.

9. Reasonable Worship: The Intelligent Response to God’s Mercy
Theme:
A life of service, sacrifice, and relationship with God is the only logical response.
Rationale: This final message ties the series together. Romans 12:1 declares that offering ourselves as living sacrifices is our “reasonable service.” Mature worship is not emotional excess or religious ritual; it is a life lived in truth, for the God who is true.
 
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