Biblical Behavioural Science Series Case Study #2: David & the Architecture of the Human Heart

David, Part 1: Emotional Regulation & Lament

Jacqueline Sohn, PhD

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How often do we say, “It’s fine,” “I’m okay,” or

“No big deal,” when it isn’t?

Sometimes we soften our words to protect ourselves.

Sometimes we do it to protect others.

Sometimes we simply do not want to be emotionally high maintenance.

And to be fair, human beings do have limits. Although we are absolutely designed to live in community, to build each other up and sharpen one another, hard things can feel heavy and pain can exhaust people. Although we are called to care and most of us do care a lot for people, humans have limitations - big time.

But Scripture reveals something amazing: our sorrow is never burdensome to God. He does not merely tolerate lament. He invites it and has preserved it in Scripture.

Recently, I watched the movie David with my kids. It was beautifully done, and I was moved again by the familiar story of the shepherd boy — his courage, his anointing, his deep trust. But as we watched, I kept thinking about what a film cannot fully capture: the interior life. The contradictions. The nuances and complexities beneath the hero narrative and the fuller story.

Because David’s life is not simply heroic. It is psychologically expansive.

He is described in 1 Samuel 13:14 as “a man after God’s own heart,” deeply chosen and deeply loved. Yet when you read the Psalms attributed to him — alongside Israel’s broader worship tradition — what you encounter is not polished spirituality. It is the full spectrum of human experience brought unapologetically before God: rage, grief, fear, joy, confusion, longing, loneliness, regret, peace, hope.

There have been seasons in my own life when I did not have language for what I was carrying — when watching people I admired unravel, or wrestling through my own grief and disappointment, left me disoriented. Then I would open the Psalms and realize the words were already there. It felt as though God had provided language in advance. Reading them did not eliminate pain, but it gave structure to it. It allowed me to process in relationship with my Abba Father rather than in isolation.

If someone described as “after God’s own heart” could live such an emotionally exposed life, perhaps deep faith and deep struggle are not contradictions that are meant to be hidden, but shared in community.

This begins a four-part Biblical Behavioural Science series on David. We will explore his emotional regulation in the Psalms, his moral drift under power, his confrontation and repentance, and the consequences that ripple through his family system. But we begin where Scripture first reveals his interior life: lament.

Consider the juxtaposition within the Psalms: “How long, O Lord?” “My tears have been my food.” “The Lord is my shepherd.” Despair, honesty, secure trust — often within the same collection of writings, sometimes within the same psalm. From a behavioural science perspective, this is remarkable.

Social neuroscience research by Matthew Lieberman and colleagues has demonstrated that naming emotions reduces amygdala activation and increases activity in regulatory regions of the prefrontal cortex. In plain terms, putting feelings into words helps calm the brain. Rather than suppressing his emotions or spiritualizing them away, David names them. “My bones wasted away.” “How long?” This is what researchers call emotional granularity (the ability to differentiate emotions precisely), which is associated with more effective regulation. Poetic lament, it turns out, doubles as neural regulation.

David was affect labeling long before it was published in a journal article.

The Psalms also follow a discernible pattern. Many move from raw distress to protest, then to reflection, and finally toward relational return. This mirrors findings from James Pennebaker’s decades of research on expressive writing, which suggest that constructing coherent narratives of distress improves psychological and even physical well-being.

The key is not chaotic venting but meaning-making.

When David asks, “Why are you cast down, O my soul?” he is engaging in something strikingly similar to cognitive restructuring — in Hebrew poetry. Seen this way, it's more structured processing than erratic emotional venting... although I can't imagine anyone would see it this way in the midst of their anguish and lament!

Equally significant is the attachment language woven throughout the Psalms. Under threat, David repeatedly refers to God as shepherd, rock, refuge, fortress, deliverer. Attachment theory, pioneered by John Bowlby and expanded by researchers such as Mikulincer and Shaver, demonstrates that perceived relational security buffers stress responses and fosters resilience. The presence of a secure attachment figure changes the nervous system’s response to threat.

David does not attempt to regulate himself in isolation. He regulates in relationship.

The Psalms are not emotional monologues; they are prayers directed toward Someone. Lament is not indulgence, venting or complaining. It is intentional regulation within relationship.

During a recent car ride, my kids were saying it's funny that there's a book of the Bible called Numbers. “It doesn’t exactly make you want to read it.” I mentioned there is also a book called Lamentations. They were intrigued. “Is that about complaining?”

I tried to explain that lament is not mere complaint. It is telling God the truth about what hurts instead of pretending everything is fine. It is saying, “This is painful, and I need You,” while remaining in relationship.

They nodded a bit dismissively (impatiently?), thew in a polite "Oh..." and moved on.

This "conversation" (lol) made me think about lament. Faith does not require emotional suppression. Distress does not disqualify us from communion. Bringing confusion, anger, grief, or disappointment into prayer is not evidence of weak belief; it is evidence of attachment.

For those who have wrestled with the moral failures of admired leaders — and/or with their own volatility — this is particularly significant. Emotional suppression does not produce spiritual maturity, although it often feels like we are suppressing our emotions for the sake of others. Yet another obvious but not obvious tidbit: unprocessed grief does not resolve itself over time.

Before David’s moral collapse — which we will examine next — there was long formation. A man who repeatedly brought his internal life into dialogue with God. He wrestled. Protested. Questioned. Returned.

And yet, emotional honesty did not make him invulnerable.

The same David who prayed, “Search me, O God,” would later orchestrate terrible deception. The same man who wrote of refuge and shepherding would one day misuse (more like abuse) power. Regulation is not immunity. Attachment language does not eliminate temptation and bad decisions. Formation is not a straight line.

Behavioural science helps illuminate this tension. Under conditions of power, isolation, fatigue, and unchecked desire, even well-formed individuals can experience cognitive narrowing. Entitlement creeps in subtly. Self-justification becomes easier. The internal dialogue shifts. The capacities that once supported regulation can, under distortion, be recruited in service of rationalization. This is not to explain away and excuse wrongdoing but to remind us that our external environments can play a role in facilitating our paths.

Thankfully, David’s story is not tidy. Is anyone's? His story is instructive.

Perhaps what made him “a man after God’s own heart” was not emotional steadiness, but his persistent pattern of return — even after devastating rupture, brought on by circumstances outside and inside his control.

Lament does not rupture faith. It keeps the attachment intact and builds a stronger bond.

And what a gift that the God of Scripture is not limited in capacity, not fatigued by our sorrow, not irritated by our questions — but the ultimate safe attachment.

Stay tuned for part 2: David, Power & Moral Drift.