Speak Life: How Your Words Change Your Brain
Jun 29, 2024
Finding Hope for Anxiety and Fatigue
If you're a Christian struggling with anxiety, chronic fatigue, or a long list of mysterious symptoms and sensitivities, I want you to know there is hope. You are not alone in this battle, and your situation can change. The answer isn't necessarily found in adding another medication, trying yet another restrictive diet, or following a complicated supplement regimen. In fact, healing your nervous system isn't about doing more – it's about doing the right things.
I want to share one powerful, often overlooked strategy for inner healing: understanding how your words impact your brain, your nervous system, and even your physical body. In this blog, we'll explore what Scripture says about the words we speak, dig into the science of how words can actually change your biology, and finally look at some faith-filled affirmations you can start speaking today to begin healing from the inside out.
I'm Angel Lavelle – a Christian Brain Rewiring Coach and founder of Anxiety Rewired⎜The Renew and Rewire Brain Retraining Method, a 5-step program that helping many Christians overcome anxiety, fatigue, food sensitivities, and more so they can live out their God-given purpose and calling with peace and health. So, let's dive in and see how changing your words can start changing your life.
The Power of Words in Scripture
The Bible makes it clear that words aren't just noise – they carry real power. From the very beginning, God demonstrated this. "Then God said, 'Let there be light,' and there was light" (Genesis 1:3). God spoke creation into being, and since we're made in His image, our words matter too.
One of the most direct reminders of this truth comes from Proverbs 18:21: "Death and life are in the power of the tongue." In other words, what we say – especially what we say about ourselves – can either speak life or deal out harm. Every time you voice complaints, gloom, or how awful you feel, you're actually reinforcing negative patterns in your brain. Those *patterns, if nott ken captive, will become default thoughts, reactions, and behaviors that, over time, become automatic. If we're constantly grumbling or declaring defeat, we literally train our brains to expect more negativity, strengthening those anxious or hopeless neural pathways.
But the good news is, the reverse is also true. When we shift our words, speaking life, healing, and hope over ourselves, we begin to rewire our brain. We create new, life-giving neural connections that align with God's promises of restoration and peace. As Romans 12:2 urges, we can be "transformed by the renewing of [our] mind," and choosing faithful, positive words is a key part of that renewal. Proverbs 16:24 paints a beautiful picture of this principle: "Pleasant words are a honeycomb, sweet to the soul and healing to the bones." In a very real sense, kind and faith-filled words are sweet and healing – they nourish us spiritually and even physically.
What Science Says About Words and the Brain
Modern science is only now catching up to what Scripture has said all along: our words can actually change our brains. Researchers have found that the emotional content of language triggers the release of neurotransmitters in the brain. In practical terms, when you speak positive, life-giving words, a cascade of beneficial effects is set in motion inside you:
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Activating "Feel-Good" Brain Chemistry: Speaking positive words (especially combined with gratitude or affirmation) activates your brain's reward centers. Neuroscientists have observed that positive thoughts and expressions can trigger the release of dopamine and serotonin – neurotransmitters that boost your mood, motivation, and emotional resilience. In fact, even a simple practice like expressing gratitude can flood your brain with these "feel-good" chemicals, immediately enhancing your sense of well-being. Over time, this positive neurochemical feedback makes it easier to experience joy and optimism.
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Forming New, Healthy Neural Pathways: Every time you choose faith-filled, encouraging words, you reinforce neural pathways associated with focus, peace, and emotional balance. Repeating truth (especially out loud) strengthens the connections in brain regions that support positive thinking, essentially rewiring old fear-based circuits into new pathways of hope and trust. As one neuroscientist put it, "a single word has the power to influence the expression of genes that regulate physical and emotional stress". By holding an uplifting word or thought in mind, you stimulate the brain's frontal lobe (involved in positive thinking and action), and the longer you concentrate on positive words, the more areas of the brain you engage in building a healthier mindset. In short, your brain can be trained to default to faith and hope instead of fear.
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Reducing Stress and Promoting Healing: Positive speech and thoughts can literally calm your nervous system. When you speak life, your brain starts to turn down the stress response. Studies show that focusing on positive, safe thoughts helps dial back the release of stress hormones like cortisol and adrenaline. Your body shifts out of "fight-or-flight" survival mode into a state of rest, safety, and healing. In this relaxed state, your immune and digestive systems work better, and your body can repair itself. This is the scientific side of what God promises when we keep our minds on His truth: "You will keep in perfect peace those whose minds are steadfast, because they trust in You"(Isaiah 26:3). Every time you choose peaceful, faith-filled words over panic, you're reinforcing a calmer physiological state.
Each time you speak these kinds of life-giving words – especially out loud – you're strengthening those new neural pathways and healthy responses. Your brain is always listening to the words you say, and it learns from repetition. Over time, intentionally spoken truth and positivity train your brain to expect life, health, and hope rather than fear and despair. This is a practical way to live out the command to renew your mind daily.
How to Change Your Words and Renew Your Mind
Knowing the power of words is one thing, but how do we apply it in everyday life? Here are three practical steps to start using your words for healing and growth:
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Pay Attention to Your Self-Talk: Begin by noticing the words that come out of your mouth (and the thoughts in your head) during everyday moments. What do you find yourself saying when you're exhausted, stressed, or when something goes wrong? Are you speaking words of life and faith, or words of fear, frustration, and defeat? Before you can change your words, you have to catch yourself in the act. So practice tuning in to your self-talk, especially in difficult moments. This awareness is the first step toward taking control of the narrative you reinforce in your brain.
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Replace Negative Words with God’s Truth: Once you become aware of negative or hopeless words, it's time to flip the script. You don't have to be perfect at it – just pause and ask, "What would God say about this situation?"or "What does God's Word say about me?" Then deliberately speak that instead. For example, instead of saying, "I'm never going to get better," you might stop and declare, "God is healing me day by day," or recall a promise like, "God works all things together for my good." By countering a negative statement with a truth from Scripture, you aren't just being optimistic – you are aligning your tongue (and brain) with God's perspective. This conscious pivot starts weakening the old negative pathway and builds up a new, positive one. Remember, you might not feel it immediately and that's okay. Keep replacing the lies or doubts with life-giving truth every time you catch them.
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Make Speaking Life a Daily Habit: Consistency is key. Just as any exercise builds muscle over time, regularly speaking faith-filled words will strengthen those positive neural pathways we discussed. Make it a habit to declare God's truth over your mind, body, and spirit every single day. You can incorporate this practice into your routine – for instance, speak affirmations or Bible promises each morning while getting ready, or recite them on your commute, or even speak them under your breath while doing chores. It might feel awkward or forced at first, especially if you're not used to speaking things out loud. But stick with it, because your brain is listening and learning. Over time, these declarations will come more naturally, and you'll start to genuinely believe them in your heart. The more you speak God’s life-giving words, the more your mind will be renewed to expect good things.
Faith-Filled Affirmations for Healing Anxiety and Finding Peace
To help you get started, here are a few powerful, faith-filled affirmations straight from Scripture. These biblical truths are meant to be spoken aloud, as a way of reminding yourself of God's promises and re-training your brain to embrace them. Write them down, post them where you'll see them often, and say them out loud — whether in the car, while you're getting ready, or doing the dishes. The more you speak them, the more your brain will believe them and internalize the truth they carry:
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I am strong and courageous. (Joshua 1:9)
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God has delivered me from all my fears. (Psalm 34:4)
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I have the mind of Christ. (1 Corinthians 2:16)
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By His stripes, I am healed. (Isaiah 53:5)
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God's goodness and mercy follow me all the days of my life. (Psalm 23:6)
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His banner over me is love. (Song of Solomon 2:4)
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Jesus came so that I may have life, and have it abundantly. (John 10:10)
Feel free to add more affirmations that resonate with you personally, but these are a powerful starting point. Every one of these statements reflects a promise or truth from God’s Word. When you speak them regularly, you are essentially praying Scripture over yourself and agreeing with what God says about you. This practice builds faith and begins to displace the fear-based narratives that anxiety often brings.
(Quick tip: Some people find it helpful to put these on sticky notes around the house or set reminders on their phone—little prompts to speak life over themselves throughout the day.)
Conclusion: Start Speaking Life Today
You do not have to stay stuck in anxiety, and you don't have to spend your life endlessly chasing symptoms or searching for the next cure. Your journey to peace and healing can start with something as simple as the words on your lips. Remember, your words are powerful – they are a gift from God that can either reinforce your fears or release your freedom.
When you learn to speak with intention and align your words with God's truth and love for you, it changes everything. Little by little, you'll notice your mindset shifting, your stress reducing, and hope returning. This is not just self-help talk; it's a faith-filled strategy grounded in biblical wisdom and backed by neuroscience. God designed our brains to be pliable and renewable, and He invites us to cooperate in that process by choosing the words we speak.
If you want to learn more about how to renew your mind, rewire your brain, and heal your nervous system in a Christ-centered way, I invite you to check out my program. (you can find the link at Anxiety-Rewired.com). It's a step-by-step program where we dive deeper into retraining your brain out of anxiety and chronic stress, all built on the foundation of God’s truth.
Finally, if this message encouraged you, consider sharing it with someone else who might need a boost of hope.
You are so loved, and there is so much hope ahead for you. Start speaking life today, and watch how God begins to transform your mind, your heart, and your health from the inside out.