How to Trust God with Your Health: 5 Biblical Principles for Christians Facing Illness
Many years ago, I chose to have extensive blood work done as part of a routine medical exam. Several weeks later, my physician asked me to come back into her office to discuss the results.
She explained that I had a thyroid disorder called Hashimoto’s disease and had tested positive for several autoimmune markers, showing sensitivity to a number of allergens.
The allergy report itself was almost comical—it looked as though I was reactive to nearly everything except vodka and bacon.
I appreciated the doctor’s thoroughness and the seriousness with which she handled the findings. But instead of responding with panic or despair, I told her—calmly and respectfully—that I was committed to seeking the Lord’s wisdom and care as I walked through whatever this meant for my health.
Over time, and without undergoing the treatment plan that had initially been discussed, those markers eventually normalized. I share that cautiously and not as a formula, a guarantee for anyone else, nor as proof that what I did eliminated the need for wisdom or medical evaluation. It is only to demonstrate God’s kindness and faithfulness to me in that season.
That careful framing is important, because not every health story resolves quickly—or along the same path mine did. I regularly speak with women who are navigating prolonged seasons of uncertainty, sorting through chronic diagnoses and confusing lab results. They desperately want to trust the Lord for healing, but the waiting has taken its toll.
I understand that place well.
Before going any further, I want to be very clear. I am not a physician and I am not offering medical advice. Scripture does not command believers to reject doctors, testing, or treatment—Luke himself was a physician (Colossians 4:14).
What I am arguing is something narrower and more biblically grounded: that God remains sovereign over our bodies, that human knowledge is limited, and that our ultimate trust must rest in Him rather than in any earthly authority alone.
Scripture says:
Trust in the LORD with all your heart,
and do not lean on your own understanding.
In all your ways acknowledge Him,
and He will make straight your paths.
— Proverbs 3:5–6
That command is not a call to abandon earthly wisdom, ignore evidence, or reject appropriate care. It is a summons to place every decision—including medical ones—under the Lordship of God. To “lean not on our own understanding” is not to despise understanding but to recognize its limits. To “acknowledge Him in all our ways” is to submit even our diagnosis, fears, and treatment plans to His authority.
When I began to live that out, it reshaped far more than my prayers… it recalibrated where I placed my confidence and how I faced uncertainty.
Out of that prolonged season came several settled convictions—not derived from formulaic approaches to healing, but from careful study of Scripture and a growing awareness of my own limitations before God. I want to share these truths because they now guide how I approach sickness, weigh treatment options, and trust Him when the journey seems difficult, in the hope that they might serve as a lifeline for others walking through similar terrain:
1. Recognize the Limits of Human Knowledge.
When someone is told, “This is chronic,” or “This will likely be lifelong,” those statements describe present medical understanding—not God’s divine authority.
Doctors, lab work, and diagnostic tools are gifts of common grace for mankind. They can reveal real conditions and provide real help. At the same time, they are not omniscient. Tests can change. Interpretations can shift. Prognoses can be revised.
For that reason, Christians should neither idolize doctors and medicine, nor demonize them. Instead, we are called to seek care wisely while remembering that the Lord—not statistics, charts, or projections—governs the outcome.
2. Speak Truthfully Without Letting Illness Define Your Identity
The Bible does not require us to deny symptoms or diagnoses. Pretending something isn’t real is not faith—it’s ignorance and avoidance. At the same time, Scripture repeatedly anchors a believer’s identity in Christ, rather than in a prognosis.
Because of that, we must be careful not to allow our physical condition to eclipse our spiritual identity, letting suffering become the truest thing about us. Illness may shape our circumstances, but it must not define who we are before God.
For that reason, Scripture also urges us to guard how we speak about our condition—not through denial, but by resisting patterns of language that subtly relocate our hope away from the Lord:
“This is just who I am now.”
“I’ll always be sick.”
“Nothing will ever change.”
Paul calls believers to stand firm against fear-driven thinking like this, recognizing it as one of the enemy’s schemes (Ephesians 6:11). That kind of vigilance includes guarding our hearts with sober, scriptural hope and by practicing the kind of resistance James commands.
3. Saturate Your Thinking With God’s Word Instead Of The Word From The Doctor
When negative thoughts and emotions creep in during a health crisis, God’s Word becomes essential. Scripture is a powerful weapon that can obliterate fear and hopelessness.
Proverbs says:
My son, be attentive to my words…
for they are life to those who find them,
and healing to all their flesh.
— Proverbs 4:20–22
Jesus Himself answered Satan with Scripture in the wilderness—not because Bible verses are magic charms, but because the truth confronts any and all lies.
The danger comes when we attempt to use Scripture as a tool to control an outcome rather than receiving it as God’s appointed means of shaping our faith, sanctifying our walk, while steadying us through the process.
4. Examine Where Your Trust Has Drifted
Repentance, in its simplest biblical sense, means turning and reordering loyalties.
For me, that meant acknowledging a persistent temptation to place my confidence in therapies, procedures, supplements, and alternative interventions as my ultimate safety net rather than as tools under God’s authority.
I began to see how easily fear and a desire to control an outcome could steer me toward whatever option promised the quickest relief—an impulse that if left unchecked, would quietly displace trust in the Lord. (Read about ‘How I Beat My Supplement Addiction’ here.)
None of those things were sinful in themselves, But my heart posture toward them required continual examination.
I had to keep repenting and recalibrating—placing my confidence back where Scripture directs: in God Himself. That did not mean refusing medical or alternative help; it simply meant refusing to treat any created thing as my healer and savior.
5. Exercise Biblical Discernment When Discussing Demonic Influence
The New Testament does show that, at times, physical affliction is connected to demonic oppression. Luke 13 describes a woman whose condition Jesus explicitly attributes to a “spirit of infirmity,” and He frees her through divine authority.
Scripture is equally clear that spiritual warfare is real. Believers are warned that the enemy prowls around like a lion seeking who can devour and that his intent is to steal, kill, and destroy.
At the same time, the Bible does not teach that every sickness is demonic in origin. Scripture presents multiple categories for suffering: natural weakness, disease, aging, discipline, testing, persecution, and on occasion, spiritual attacks.
Wisdom, therefore, requires careful discernment rather than sweeping conclusions. Deliverance language must remain tethered tightly to the text, instead of generalized beyond what Scripture affirms.
That kind of discernment—refusing both spiritual naïveté and theological overreach—became part of what steadied me in a difficult stretch of unanswered questions and taught me to submit every fear, every symptom, and every decision to Scripture rather than to speculation.
While I cannot prescribe the path God took me on, since He works differently in different lives, I can testify to this: shifting my trust away from human authority—not dramatically, not impulsively, not formulaically—gave me clarity, peace, and eventually, fruit.
My encouragement to anyone who is dealing with a diagnosis or illness of any type is simple:
Submit to Scripture.
Pray earnestly.
Seek wisdom.
Use discernment.
Believe faithfully.
And refuse to let anything—medical or spiritual—replace Christ as the center of your confidence.
God is neither threatened by disease nor limited by diagnosis.
He is still Lord.